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291034104912 = 24322021070173
BaseRepresentation
bin1000011110000101111…
…11000000010001010000
31000211012200000100212200
410033002333000101100
514232014212324122
6341411010523200
730012045034455
oct4170277002120
91024180010780
10291034104912
1110247718a651
12484a2896500
13215a145cb45
141012c48782c
1578854bc5ac
hex43c2fc0450

291034104912 has 30 divisors (see below), whose sum is σ = 814491280122. Its totient is φ = 97011368256.

The previous prime is 291034104887. The next prime is 291034104913. The reversal of 291034104912 is 219401430192.

291034104912 is a `hidden beast` number, since 29 + 103 + 41 + 0 + 491 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 261165969936 + 29868134976 = 511044^2 + 172824^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291034104913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1010534943 + ... + 1010535230.

Almost surely, 2291034104912 is an apocalyptic number.

It is an amenable number.

291034104912 is an abundant number, since it is smaller than the sum of its proper divisors (523457175210).

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

291034104912 is a wasteful number, since it uses less digits than its factorization.

291034104912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021070187 (or 2021070178 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 291034104912 in words is "two hundred ninety-one billion, thirty-four million, one hundred four thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 2021070173 4042140346 6063210519 8084280692 12126421038 16168561384 18189631557 24252842076 32337122768 36379263114 48505684152 72758526228 97011368304 145517052456 291034104912