Search a number
-
+
231103010320 = 24571331744919
BaseRepresentation
bin1101011100111011010…
…0000001011000010000
3211002111222002022120121
43113032310001120100
512241244332312240
6254100043320024
722460643114250
oct3271664013020
9732458068517
10231103010320
118a012696206
1238957b20014
1318a4007a1b0
14b284c0d960
156028d2b04a
hex35ced01610

231103010320 has 80 divisors (see below), whose sum is σ = 661310173440. Its totient is φ = 73140291072.

The previous prime is 231103010311. The next prime is 231103010329. The reversal of 231103010320 is 23010301132.

It is an interprime number because it is at equal distance from previous prime (231103010311) and next prime (231103010329).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 231103010294 and 231103010303.

It is not an unprimeable number, because it can be changed into a prime (231103010329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15865180 + ... + 15879739.

It is an arithmetic number, because the mean of its divisors is an integer number (8266377168).

Almost surely, 2231103010320 is an apocalyptic number.

231103010320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231103010320 is an abundant number, since it is smaller than the sum of its proper divisors (430207163120).

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

231103010320 is a wasteful number, since it uses less digits than its factorization.

231103010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31744952 (or 31744946 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 231103010320 its reverse (23010301132), we get a palindrome (254113311452).

The spelling of 231103010320 in words is "two hundred thirty-one billion, one hundred three million, ten thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 52 56 65 70 80 91 104 112 130 140 182 208 260 280 364 455 520 560 728 910 1040 1456 1820 3640 7280 31744919 63489838 126979676 158724595 222214433 253959352 317449190 412683947 444428866 507918704 634898380 825367894 888857732 1111072165 1269796760 1650735788 1777715464 2063419735 2222144330 2539593520 2888787629 3301471576 3555430928 4126839470 4444288660 5777575258 6602943152 8253678940 8888577320 11555150516 14443938145 16507357880 17777154640 23110301032 28887876290 33014715760 46220602064 57775752580 115551505160 231103010320