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30287111955 = 352019140797
BaseRepresentation
bin11100001101010000…
…001010011100010011
32220011202112200221020
4130031100022130103
5444012000040310
621525205530523
72121354126642
oct341520123423
986152480836
1030287111955
1111932315541
125a53113a43
132b189cc929
141674625359
15bc3e3e170
hex70d40a713

30287111955 has 8 divisors (see below), whose sum is σ = 48459379152. Its totient is φ = 16153126368.

The previous prime is 30287111893. The next prime is 30287111977. The reversal of 30287111955 is 55911178203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30287111955 - 211 = 30287109907 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009570384 + ... + 1009570413.

It is an arithmetic number, because the mean of its divisors is an integer number (6057422394).

Almost surely, 230287111955 is an apocalyptic number.

30287111955 is a deficient number, since it is larger than the sum of its proper divisors (18172267197).

30287111955 is a wasteful number, since it uses less digits than its factorization.

30287111955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019140805.

The product of its (nonzero) digits is 75600, while the sum is 42.

The spelling of 30287111955 in words is "thirty billion, two hundred eighty-seven million, one hundred eleven thousand, nine hundred fifty-five".

Divisors: 1 3 5 15 2019140797 6057422391 10095703985 30287111955