Search a number
-
+
139495392 = 2533161453
BaseRepresentation
bin10000101000010…
…00011111100000
3100201111002201000
420110020133200
5241202323032
621501512000
73312456051
oct1024103740
9321432630
10139495392
1171817a53
123a872600
1322b9176a
1414752728
15c3a6e7c
hex85087e0

139495392 has 48 divisors (see below), whose sum is σ = 406864080. Its totient is φ = 46498176.

The previous prime is 139495357. The next prime is 139495399. The reversal of 139495392 is 293594931.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139495399) 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, 79863 + ... + 81590.

It is an arithmetic number, because the mean of its divisors is an integer number (8476335).

Almost surely, 2139495392 is an apocalyptic number.

139495392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139495392 is an abundant number, since it is smaller than the sum of its proper divisors (267368688).

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

139495392 is a wasteful number, since it uses less digits than its factorization.

139495392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161472 (or 161458 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 139495392 is about 11810.8167372117. The cubic root of 139495392 is about 518.6248081888.

The spelling of 139495392 in words is "one hundred thirty-nine million, four hundred ninety-five thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 161453 322906 484359 645812 968718 1291624 1453077 1937436 2583248 2906154 3874872 4359231 5166496 5812308 7749744 8718462 11624616 15499488 17436924 23249232 34873848 46498464 69747696 139495392