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51011060472 = 23331713891901
BaseRepresentation
bin101111100000011111…
…110000001011111000
311212200001022100212000
4233200133300023320
51313432312413342
635233440021000
73454046600631
oct574037601370
9155601270760
1051011060472
111a6a7460819
129a77601760
134a6c380368
14267cb1a888
1514d850d44c
hexbe07f02f8

51011060472 has 64 divisors (see below), whose sum is σ = 150032541600. Its totient is φ = 16003468800.

The previous prime is 51011060461. The next prime is 51011060491. The reversal of 51011060472 is 27406011015.

It is a happy number.

51011060472 is a `hidden beast` number, since 51 + 0 + 1 + 1 + 0 + 604 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6942279 + ... + 6949622.

Almost surely, 251011060472 is an apocalyptic number.

It is an amenable number.

51011060472 is an abundant number, since it is smaller than the sum of its proper divisors (99021481128).

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

51011060472 is a wasteful number, since it uses less digits than its factorization.

51011060472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13891933 (or 13891923 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

Adding to 51011060472 its reverse (27406011015), we get a palindrome (78417071487).

The spelling of 51011060472 in words is "fifty-one billion, eleven million, sixty thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 27 34 36 51 54 68 72 102 108 136 153 204 216 306 408 459 612 918 1224 1836 3672 13891901 27783802 41675703 55567604 83351406 111135208 125027109 166702812 236162317 250054218 333405624 375081327 472324634 500108436 708486951 750162654 944649268 1000216872 1416973902 1500325308 1889298536 2125460853 2833947804 3000650616 4250921706 5667895608 6376382559 8501843412 12752765118 17003686824 25505530236 51011060472