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51472290024 = 23331917372497
BaseRepresentation
bin101111111011111111…
…001101000011101000
311220212012012020212000
4233323333031003220
51320403401240044
635351313451000
73501350150331
oct577377150350
9156765166760
1051472290024
111a913847371
129b85b70a60
134b13aac45c
1426c409d288
151513c68d69
hexbfbfcd0e8

51472290024 has 128 divisors (see below), whose sum is σ = 151375824000. Its totient is φ = 16160228352.

The previous prime is 51472289969. The next prime is 51472290031. The reversal of 51472290024 is 42009227415.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673744 + ... + 746240.

It is an arithmetic number, because the mean of its divisors is an integer number (1182623625).

Almost surely, 251472290024 is an apocalyptic number.

51472290024 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51472290024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75687912000).

51472290024 is an abundant number, since it is smaller than the sum of its proper divisors (99903533976).

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

51472290024 is a wasteful number, since it uses less digits than its factorization.

51472290024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72704 (or 72694 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 51472290024 in words is "fifty-one billion, four hundred seventy-two million, two hundred ninety thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 27 36 38 54 57 72 76 108 114 152 171 173 216 228 342 346 456 513 519 684 692 1026 1038 1368 1384 1557 2052 2076 3114 3287 4104 4152 4671 6228 6574 9342 9861 12456 13148 18684 19722 26296 29583 37368 39444 59166 72497 78888 88749 118332 144994 177498 217491 236664 289988 354996 434982 579976 652473 709992 869964 1304946 1377443 1739928 1957419 2609892 2754886 3914838 4132329 5219784 5509772 7829676 8264658 11019544 12396987 12541981 15659352 16529316 24793974 25083962 33058632 37190961 37625943 49587948 50167924 74381922 75251886 99175896 100335848 112877829 148763844 150503772 225755658 238297639 297527688 301007544 338633487 451511316 476595278 677266974 714892917 903022632 953190556 1354533948 1429785834 1906381112 2144678751 2709067896 2859571668 4289357502 5719143336 6434036253 8578715004 12868072506 17157430008 25736145012 51472290024