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51423345250044 = 223157191317450803
BaseRepresentation
bin10111011000100111011100…
…01110100000111011111100
320202002000122100100122020020
423230103232032200323330
523220010002341000134
6301211320401452140
713555133301422505
oct1354235616407374
9222060570318206
1051423345250044
1115426577876259
125926232341050
13229027ba9b171
14c9ac904d3bac
155e298c57ab49
hex2ec4ee3a0efc

51423345250044 has 96 divisors (see below), whose sum is σ = 121767454642176. Its totient is φ = 16889278897920.

The previous prime is 51423345250037. The next prime is 51423345250117. The reversal of 51423345250044 is 44005254332415.

It is a junction number, because it is equal to n+sod(n) for n = 51423345249978 and 51423345250005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113845147 + ... + 114295949.

It is an arithmetic number, because the mean of its divisors is an integer number (1268410985856).

Almost surely, 251423345250044 is an apocalyptic number.

It is an amenable number.

51423345250044 is an abundant number, since it is smaller than the sum of its proper divisors (70344109392132).

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

51423345250044 is a wasteful number, since it uses less digits than its factorization.

51423345250044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451475 (or 451473 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 51423345250044 its reverse (44005254332415), we get a palindrome (95428599582459).

The spelling of 51423345250044 in words is "fifty-one trillion, four hundred twenty-three billion, three hundred forty-five million, two hundred fifty thousand, forty-four".

Divisors: 1 2 3 4 6 12 157 191 314 317 382 471 573 628 634 764 942 951 1146 1268 1884 1902 2292 3804 29987 49769 59974 60547 89961 99538 119948 121094 149307 179922 181641 199076 242188 298614 359844 363282 450803 597228 726564 901606 1352409 1803212 2704818 5409636 9505879 19011758 28517637 38023516 57035274 70776071 86103373 114070548 141552142 142904551 172206746 212328213 258310119 283104284 285809102 344413492 424656426 428713653 516620238 571618204 849312852 857427306 1033240476 1714854612 13518229561 22436014507 27036459122 27294769241 40554688683 44872029014 54072918244 54589538482 67308043521 81109377366 81884307723 89744058028 109179076964 134616087042 162218754732 163768615446 269232174084 327537230892 4285278770837 8570557541674 12855836312511 17141115083348 25711672625022 51423345250044