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289157058932 = 22721475291117
BaseRepresentation
bin1000011010100110001…
…10101001000101110100
31000122100212000112212012
410031103012221011310
514214143201341212
6340500435143352
726614403306300
oct4152306510564
91018325015765
10289157058932
111016a3692185
124805a144b58
1321362605151
14ddd1076d00
1577c57e5922
hex43531a9174

289157058932 has 18 divisors (see below), whose sum is σ = 588641156082. Its totient is φ = 123924453744.

The previous prime is 289157058917. The next prime is 289157058941. The reversal of 289157058932 is 239850751982.

It can be written as a sum of positive squares in only one way, i.e., 152852849296 + 136304209636 = 390964^2 + 369194^2 .

It is a super-2 number, since 2×2891570589322 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 737645363 + ... + 737645754.

It is an arithmetic number, because the mean of its divisors is an integer number (32702286449).

Almost surely, 2289157058932 is an apocalyptic number.

It is an amenable number.

289157058932 is an abundant number, since it is smaller than the sum of its proper divisors (299484097150).

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

289157058932 is a wasteful number, since it uses less digits than its factorization.

289157058932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475291135 (or 1475291126 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 289157058932 in words is "two hundred eighty-nine billion, one hundred fifty-seven million, fifty-eight thousand, nine hundred thirty-two".

Divisors: 1 2 4 7 14 28 49 98 196 1475291117 2950582234 5901164468 10327037819 20654075638 41308151276 72289264733 144578529466 289157058932