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53163145641 = 3831559136951
BaseRepresentation
bin110001100000110001…
…010011100110101001
312002020000211121201010
4301200301103212221
51332334231130031
640231154414133
73561301165464
oct614061234651
9162200747633
1053163145641
1120601234201
12a378291349
1350231a6738
1428048842db
1515b2413246
hexc60c539a9

53163145641 has 16 divisors (see below), whose sum is σ = 71784760320. Its totient is φ = 34992368400.

The previous prime is 53163145639. The next prime is 53163145657. The reversal of 53163145641 is 14654136135.

It is not a de Polignac number, because 53163145641 - 21 = 53163145639 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53163145641.

It is not an unprimeable number, because it can be changed into a prime (53163145621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319716 + ... + 456666.

It is an arithmetic number, because the mean of its divisors is an integer number (4486547520).

Almost surely, 253163145641 is an apocalyptic number.

It is an amenable number.

53163145641 is a deficient number, since it is larger than the sum of its proper divisors (18621614679).

53163145641 is a wasteful number, since it uses less digits than its factorization.

53163145641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138596.

The product of its digits is 129600, while the sum is 39.

The spelling of 53163145641 in words is "fifty-three billion, one hundred sixty-three million, one hundred forty-five thousand, six hundred forty-one".

Divisors: 1 3 83 249 1559 4677 129397 136951 388191 410853 11366933 34100799 213506609 640519827 17721048547 53163145641