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1310131333120 = 2115261748889
BaseRepresentation
bin10011000100001001111…
…010011010100000000000
311122020200022020111112011
4103010021322122200000
5132431122110124440
62441511021142304
7163440163405621
oct23041172324000
94566608214464
101310131333120
11465694a89775
12191ab43ba994
13967110790cc
14475a6d37a48
152412d5c69ea
hex13109e9a800

1310131333120 has 96 divisors (see below), whose sum is σ = 3144813071400. Its totient is φ = 523841568768.

The previous prime is 1310131333103. The next prime is 1310131333157. The reversal of 1310131333120 is 213331310131.

It can be written as a sum of positive squares in 4 ways, for example, as 1296391742464 + 13739590656 = 1138592^2 + 117216^2 .

It is a super-2 number, since 2×13101313331202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1310131333091 and 1310131333100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26773636 + ... + 26822524.

Almost surely, 21310131333120 is an apocalyptic number.

1310131333120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310131333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572406535700).

1310131333120 is an abundant number, since it is smaller than the sum of its proper divisors (1834681738280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310131333120 is an equidigital number, since it uses as much as digits as its factorization.

1310131333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51533 (or 51513 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1310131333120 its reverse (213331310131), we get a palindrome (1523462643251).

The spelling of 1310131333120 in words is "one trillion, three hundred ten billion, one hundred thirty-one million, three hundred thirty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1024 1280 2048 2560 2617 5120 5234 10240 10468 13085 20936 26170 41872 48889 52340 83744 97778 104680 167488 195556 209360 244445 334976 391112 418720 488890 669952 782224 837440 977780 1339904 1564448 1674880 1955560 2679808 3128896 3349760 3911120 5359616 6257792 6699520 7822240 12515584 13399040 15644480 25031168 26798080 31288960 50062336 62577920 100124672 125155840 127942513 250311680 255885026 500623360 511770052 639712565 1023540104 1279425130 2047080208 2558850260 4094160416 5117700520 8188320832 10235401040 16376641664 20470802080 32753283328 40941604160 65506566656 81883208320 131013133312 163766416640 262026266624 327532833280 655065666560 1310131333120