Search a number
-
+
123310331970 = 2357587192057
BaseRepresentation
bin111001011010111011…
…1100101100001000010
3102210021201010220021020
41302311313211201002
54010014421110340
6132351544210310
711623513346010
oct1626567454102
9383251126236
10123310331970
1148328516571
121ba94469996
13b821c76397
145d7ac518b0
15331a8e99d0
hex1cb5de5842

123310331970 has 32 divisors (see below), whose sum is σ = 338222625408. Its totient is φ = 28185218688.

The previous prime is 123310331927. The next prime is 123310331971. The reversal of 123310331970 is 79133013321.

It is not an unprimeable number, because it can be changed into a prime (123310331971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293595819 + ... + 293596238.

It is an arithmetic number, because the mean of its divisors is an integer number (10569457044).

Almost surely, 2123310331970 is an apocalyptic number.

123310331970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123310331970 is an abundant number, since it is smaller than the sum of its proper divisors (214912293438).

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

123310331970 is a wasteful number, since it uses less digits than its factorization.

123310331970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587192074.

The product of its (nonzero) digits is 10206, while the sum is 33.

The spelling of 123310331970 in words is "one hundred twenty-three billion, three hundred ten million, three hundred thirty-one thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 587192057 1174384114 1761576171 2935960285 3523152342 4110344399 5871920570 8220688798 8807880855 12331033197 17615761710 20551721995 24662066394 41103443990 61655165985 123310331970