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60981339136 = 21077172
BaseRepresentation
bin111000110010110001…
…010110010000000000
312211101220010222222011
4320302301112100000
51444342210323021
644003041422304
74256113554514
oct706261262000
9184356128864
1060981339136
1123953415743
12b99a63a994
13599ab62633
142d46d44144
1518bd999de1
hexe32c56400

60981339136 has 33 divisors (see below), whose sum is σ = 121918924929. Its totient is φ = 30486718464.

The previous prime is 60981339091. The next prime is 60981339187. The reversal of 60981339136 is 63193318906.

The square root of 60981339136 is 246944.

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

It can be written as a sum of positive squares in only one way, i.e., 29915161600 + 31066177536 = 172960^2 + 176256^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60981339136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7898350 + ... + 7906066.

Almost surely, 260981339136 is an apocalyptic number.

60981339136 is the 246944-th square number.

It is an amenable number.

60981339136 is a deficient number, since it is larger than the sum of its proper divisors (60937585793).

60981339136 is an frugal number, since it uses more digits than its factorization.

60981339136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15454 (or 7719 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 49.

Multiplying 60981339136 by its sum of digits (49), we get a square (2988085617664 = 17286082).

The spelling of 60981339136 in words is "sixty billion, nine hundred eighty-one million, three hundred thirty-nine thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 7717 15434 30868 61736 123472 246944 493888 987776 1975552 3951104 7902208 59552089 119104178 238208356 476416712 952833424 1905666848 3811333696 7622667392 15245334784 30490669568 60981339136