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30390104394 = 236131603361
BaseRepresentation
bin11100010011011001…
…000011000101001010
32220102221100021000000
4130103121003011022
5444214331320034
621543325223430
72124044424306
oct342331030512
986387307000
1030390104394
1111985470261
125a81701b76
132b341504c0
141684194d06
15bcced5599
hex71364314a

30390104394 has 56 divisors (see below), whose sum is σ = 73603935972. Its totient is φ = 9350795520.

The previous prime is 30390104351. The next prime is 30390104399. The reversal of 30390104394 is 49340109303.

It can be written as a sum of positive squares in 2 ways, for example, as 29682810369 + 707294025 = 172287^2 + 26595^2 .

It is not an unprimeable number, because it can be changed into a prime (30390104399) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 782727 + ... + 820634.

Almost surely, 230390104394 is an apocalyptic number.

30390104394 is an abundant number, since it is smaller than the sum of its proper divisors (43213831578).

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

30390104394 is a wasteful number, since it uses less digits than its factorization.

30390104394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603394 (or 1603379 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 30390104394 in words is "thirty billion, three hundred ninety million, one hundred four thousand, three hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 81 117 162 234 243 351 486 702 729 1053 1458 2106 3159 6318 9477 18954 1603361 3206722 4810083 9620166 14430249 20843693 28860498 41687386 43290747 62531079 86581494 125062158 129872241 187593237 259744482 375186474 389616723 562779711 779233446 1125559422 1168850169 1688339133 2337700338 3376678266 5065017399 10130034798 15195052197 30390104394