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31001301030 = 2357147625243
BaseRepresentation
bin11100110111110100…
…100101000000100110
32222000112102021011110
4130313310211000212
51001442313113110
622124121245450
72145145465560
oct346764450046
988015367143
1031001301030
1112169476347
126012333886
132c0096950b
141701414330
15c169b5a20
hex737d25026

31001301030 has 32 divisors (see below), whose sum is σ = 85032140544. Its totient is φ = 7086011616.

The previous prime is 31001301007. The next prime is 31001301059. The reversal of 31001301030 is 3010310013.

It is a super-2 number, since 2×310013010302 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31001300997 and 31001301015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73812412 + ... + 73812831.

It is an arithmetic number, because the mean of its divisors is an integer number (2657254392).

Almost surely, 231001301030 is an apocalyptic number.

31001301030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31001301030 is an abundant number, since it is smaller than the sum of its proper divisors (54030839514).

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

31001301030 is a wasteful number, since it uses less digits than its factorization.

31001301030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147625260.

The product of its (nonzero) digits is 27, while the sum is 12.

Adding to 31001301030 its reverse (3010310013), we get a palindrome (34011611043).

The spelling of 31001301030 in words is "thirty-one billion, one million, three hundred one thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 147625243 295250486 442875729 738126215 885751458 1033376701 1476252430 2066753402 2214378645 3100130103 4428757290 5166883505 6200260206 10333767010 15500650515 31001301030