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51904106890234 = 21913110426698853
BaseRepresentation
bin10111100110100110111011…
…10110101000001111111010
320210202222120110012102010221
423303103131312220033322
523300344102330441414
6302220230104130254
713634643104064454
oct1363233566501772
9223688513172127
1051904106890234
11155a1454225235
1259a344446698a
1322c66c8283081
14cb625a6532d4
1560022923e224
hex2f34ddda83fa

51904106890234 has 16 divisors (see below), whose sum is σ = 82579454923680. Its totient is φ = 24398475313680.

The previous prime is 51904106890219. The next prime is 51904106890241. The reversal of 51904106890234 is 43209860140915.

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, 5213344449 + ... + 5213354404.

It is an arithmetic number, because the mean of its divisors is an integer number (5161215932730).

Almost surely, 251904106890234 is an apocalyptic number.

51904106890234 is a deficient number, since it is larger than the sum of its proper divisors (30675348033446).

51904106890234 is a wasteful number, since it uses less digits than its factorization.

51904106890234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426699005.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 51904106890234 in words is "fifty-one trillion, nine hundred four billion, one hundred six million, eight hundred ninety thousand, two hundred thirty-four".

Divisors: 1 2 19 38 131 262 2489 4978 10426698853 20853397706 198107278207 396214556414 1365897549743 2731795099486 25952053445117 51904106890234