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30456016121 = 4715115312803
BaseRepresentation
bin11100010111010100…
…011110110011111001
32220121112100220220002
4130113110132303321
5444333220003441
621554042042345
72125504602626
oct342724366371
986545326802
1030456016121
1111a09699763
125a9b7a93b5
132b449ba21b
14168cc3134d
15bd3ba4b9b
hex71751ecf9

30456016121 has 16 divisors (see below), whose sum is σ = 31341631488. Its totient is φ = 29580714000.

The previous prime is 30456016109. The next prime is 30456016141. The reversal of 30456016121 is 12161065403.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30456016121 - 26 = 30456016057 is a prime.

It is a super-2 number, since 2×304560161212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30456016141) 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, 10864106 + ... + 10866908.

It is an arithmetic number, because the mean of its divisors is an integer number (1958851968).

Almost surely, 230456016121 is an apocalyptic number.

It is an amenable number.

30456016121 is a deficient number, since it is larger than the sum of its proper divisors (885615367).

30456016121 is a wasteful number, since it uses less digits than its factorization.

30456016121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 30456016121 in words is "thirty billion, four hundred fifty-six million, sixteen thousand, one hundred twenty-one".

Divisors: 1 47 151 1531 2803 7097 71957 131741 231181 423253 4291393 10865507 19892891 201695471 648000343 30456016121