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30151531422 = 2331314262303
BaseRepresentation
bin11100000101001010…
…111101101110011110
32212211022102111102000
4130011022331232132
5443222243001142
621503523543130
72115116534265
oct340512755636
985738374360
1030151531422
1111872831911
125a1582aaa6
132ac68ac06c
1416606115dc
15bb70ac14c
hex7052bdb9e

30151531422 has 32 divisors (see below), whose sum is σ = 67514895360. Its totient is φ = 9973786680.

The previous prime is 30151531393. The next prime is 30151531469. The reversal of 30151531422 is 22413515103.

30151531422 is a `hidden beast` number, since 3 + 0 + 1 + 515 + 3 + 142 + 2 = 666.

It is a super-2 number, since 2×301515314222 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2124078 + ... + 2138225.

It is an arithmetic number, because the mean of its divisors is an integer number (2109840480).

Almost surely, 230151531422 is an apocalyptic number.

30151531422 is an abundant number, since it is smaller than the sum of its proper divisors (37363363938).

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

30151531422 is a wasteful number, since it uses less digits than its factorization.

30151531422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262445 (or 4262439 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 30151531422 in words is "thirty billion, one hundred fifty-one million, five hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 131 262 393 786 1179 2358 3537 7074 4262303 8524606 12786909 25573818 38360727 76721454 115082181 230164362 558361693 1116723386 1675085079 3350170158 5025255237 10050510474 15075765711 30151531422