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54351233412 = 22377355715913
BaseRepresentation
bin110010100111100101…
…100000000110000100
312012021211102201201220
4302213211200012010
51342302403432122
640545115320340
73632605601310
oct624745400604
9165254381656
1054351233412
1121060944123
12a64a1500b0
135182389b58
1428b8592b40
15163189925c
hexca7960184

54351233412 has 96 divisors (see below), whose sum is σ = 147195078912. Its totient is φ = 15287740416.

The previous prime is 54351233411. The next prime is 54351233423. The reversal of 54351233412 is 21433215345.

It is not an unprimeable number, because it can be changed into a prime (54351233411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3407568 + ... + 3423480.

It is an arithmetic number, because the mean of its divisors is an integer number (1533282072).

Almost surely, 254351233412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54351233412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73597539456).

54351233412 is an abundant number, since it is smaller than the sum of its proper divisors (92843845500).

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

54351233412 is a wasteful number, since it uses less digits than its factorization.

54351233412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16557 (or 16555 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

Adding to 54351233412 its reverse (21433215345), we get a palindrome (75784448757).

The spelling of 54351233412 in words is "fifty-four billion, three hundred fifty-one million, two hundred thirty-three thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 73 84 146 219 292 438 511 557 876 1022 1114 1533 1671 2044 2228 3066 3342 3899 6132 6684 7798 11697 15596 15913 23394 31826 40661 46788 47739 63652 81322 95478 111391 121983 162644 190956 222782 243966 284627 334173 445564 487932 569254 668346 853881 1138508 1161649 1336692 1707762 2323298 3415524 3484947 4646596 6969894 8131543 8863541 13939788 16263086 17727082 24394629 26590623 32526172 35454164 48789258 53181246 62044787 97578516 106362492 124089574 186134361 248179148 372268722 647038493 744537444 1294076986 1941115479 2588153972 3882230958 4529269451 7764461916 9058538902 13587808353 18117077804 27175616706 54351233412