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30287111959 = 132988379091
BaseRepresentation
bin11100001101010000…
…001010011100010111
32220011202112200221101
4130031100022130113
5444012000040314
621525205530531
72121354126646
oct341520123427
986152480841
1030287111959
1111932315545
125a53113a47
132b189cc930
14167462535d
15bc3e3e174
hex70d40a717

30287111959 has 16 divisors (see below), whose sum is σ = 33749140320. Its totient is φ = 26987264640.

The previous prime is 30287111893. The next prime is 30287111977. The reversal of 30287111959 is 95911178203.

It is a cyclic number.

It is not a de Polignac number, because 30287111959 - 27 = 30287111831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30287111759) 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, 3327004 + ... + 3336094.

It is an arithmetic number, because the mean of its divisors is an integer number (2109321270).

Almost surely, 230287111959 is an apocalyptic number.

30287111959 is a deficient number, since it is larger than the sum of its proper divisors (3462028361).

30287111959 is a wasteful number, since it uses less digits than its factorization.

30287111959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17970.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 30287111959 in words is "thirty billion, two hundred eighty-seven million, one hundred eleven thousand, nine hundred fifty-nine".

Divisors: 1 13 29 377 8837 9091 114881 118183 256273 263639 3331549 3427307 80337167 1044383171 2329777843 30287111959