Search a number
-
+
50715490401 = 3227122772
BaseRepresentation
bin101111001110111000…
…001111100001100001
311211220110010211221100
4233032320033201201
51312331131143101
635144240545013
73443530361412
oct571670174141
9154813124840
1050715490401
111a565632634
1299b4622169
134a23073a24
14265177b809
1514bc5c6e86
hexbcee0f861

50715490401 has 27 divisors (see below), whose sum is σ = 73793420883. Its totient is φ = 33563957040.

The previous prime is 50715490369. The next prime is 50715490433. The reversal of 50715490401 is 10409451705.

The square root of 50715490401 is 225201.

It is a perfect power (a square), and thus also a powerful number.

50715490401 is a `hidden beast` number, since 5 + 0 + 71 + 549 + 0 + 40 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (50715490369) and next prime (50715490433).

It can be written as a sum of positive squares in only one way, i.e., 8741315025 + 41974175376 = 93495^2 + 204876^2 .

It is not a de Polignac number, because 50715490401 - 25 = 50715490369 is a prime.

It is a super-2 number, since 2×507154904012 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50715490451) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 183088275 + ... + 183088551.

Almost surely, 250715490401 is an apocalyptic number.

50715490401 is the 225201-st square number.

50715490401 is the 112601-st centered octagonal number.

It is an amenable number.

50715490401 is a deficient number, since it is larger than the sum of its proper divisors (23077930482).

50715490401 is an frugal number, since it uses more digits than its factorization.

50715490401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

Multiplying 50715490401 by its sum of digits (36), we get a square (1825757654436 = 13512062).

The spelling of 50715490401 in words is "fifty billion, seven hundred fifteen million, four hundred ninety thousand, four hundred one".

Divisors: 1 3 9 271 277 813 831 2439 2493 73441 75067 76729 220323 225201 230187 660969 675603 690561 20343157 20793559 61029471 62380677 183088413 187142031 5635054489 16905163467 50715490401