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53642361264 = 2431576770879
BaseRepresentation
bin110001111101010101…
…010111100110110000
312010110102120021221220
4301331111113212300
51334324421030024
640350513545040
73606210355542
oct617525274660
9163412507856
1053642361264
1120827794a78
12a490875180
13509b56238b
14284c389692
1515de522e79
hexc7d5579b0

53642361264 has 40 divisors (see below), whose sum is σ = 138586844160. Its totient is φ = 17879400768.

The previous prime is 53642361263. The next prime is 53642361277. The reversal of 53642361264 is 46216324635.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53642361263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721377 + ... + 792255.

It is an arithmetic number, because the mean of its divisors is an integer number (3464671104).

Almost surely, 253642361264 is an apocalyptic number.

It is an amenable number.

53642361264 is an abundant number, since it is smaller than the sum of its proper divisors (84944482896).

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

53642361264 is a wasteful number, since it uses less digits than its factorization.

53642361264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86657 (or 86651 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

Adding to 53642361264 its reverse (46216324635), we get a palindrome (99858685899).

The spelling of 53642361264 in words is "fifty-three billion, six hundred forty-two million, three hundred sixty-one thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 15767 31534 47301 63068 70879 94602 126136 141758 189204 212637 252272 283516 378408 425274 567032 756816 850548 1134064 1701096 3402192 1117549193 2235098386 3352647579 4470196772 6705295158 8940393544 13410590316 17880787088 26821180632 53642361264