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30121274070 = 23251481225983
BaseRepresentation
bin11100000011010111…
…100010101011010110
32212202012111021010100
4130003113202223112
5443142021232240
621500523234530
72114301414366
oct340327425326
985665437110
1030121274070
1111857746038
125a07678a46
132ac0546bc4
14165a5b69a6
15bb45d1e30
hex7035e2ad6

30121274070 has 48 divisors (see below), whose sum is σ = 78368539392. Its totient is φ = 8026880640.

The previous prime is 30121274069. The next prime is 30121274147. The reversal of 30121274070 is 7047212103.

It is a happy number.

30121274070 is a `hidden beast` number, since 301 + 21 + 274 + 0 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20299 + ... + 246281.

It is an arithmetic number, because the mean of its divisors is an integer number (1632677904).

Almost surely, 230121274070 is an apocalyptic number.

30121274070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30121274070 is an abundant number, since it is smaller than the sum of its proper divisors (48247265322).

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

30121274070 is a wasteful number, since it uses less digits than its factorization.

30121274070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227477 (or 227474 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

Adding to 30121274070 its reverse (7047212103), we get a palindrome (37168486173).

The spelling of 30121274070 in words is "thirty billion, one hundred twenty-one million, two hundred seventy-four thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1481 2962 4443 7405 8886 13329 14810 22215 26658 44430 66645 133290 225983 451966 677949 1129915 1355898 2033847 2259830 3389745 4067694 6779490 10169235 20338470 334680823 669361646 1004042469 1673404115 2008084938 3012127407 3346808230 5020212345 6024254814 10040424690 15060637035 30121274070