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30291468042 = 23111493307409
BaseRepresentation
bin11100001101100000…
…110001111100001010
32220012001202000100210
4130031200301330022
5444014103434132
621525443141550
72121436141623
oct341540617412
986161660323
1030291468042
1111934820310
125a546748b6
132b198965b4
14167503aa4a
15bc44eebcc
hex70d831f0a

30291468042 has 32 divisors (see below), whose sum is σ = 66134957760. Its totient is φ = 9173054720.

The previous prime is 30291468017. The next prime is 30291468079. The reversal of 30291468042 is 24086419203.

It is a super-2 number, since 2×302914680422 (a number of 22 digits) contains 22 as substring.

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, 55167 + ... + 252242.

It is an arithmetic number, because the mean of its divisors is an integer number (2066717430).

Almost surely, 230291468042 is an apocalyptic number.

30291468042 is an abundant number, since it is smaller than the sum of its proper divisors (35843489718).

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

30291468042 is a wasteful number, since it uses less digits than its factorization.

30291468042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308918.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 30291468042 in words is "thirty billion, two hundred ninety-one million, four hundred sixty-eight thousand, forty-two".

Divisors: 1 2 3 6 11 22 33 66 1493 2986 4479 8958 16423 32846 49269 98538 307409 614818 922227 1844454 3381499 6762998 10144497 20288994 458961637 917923274 1376884911 2753769822 5048578007 10097156014 15145734021 30291468042