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139719024 = 24325318307
BaseRepresentation
bin10000101001111…
…11000101110000
3100201220110110200
420110333011300
5241232002044
621510355200
73314410044
oct1024770560
9321813420
10139719024
117195aa75
123a95bb00
1322c3c4a3
14147b0024
15c3ed369
hex853f170

139719024 has 60 divisors (see below), whose sum is σ = 398418696. Its totient is φ = 45691776.

The previous prime is 139719017. The next prime is 139719029. The reversal of 139719024 is 420917931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 139719024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139719029) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1522 + ... + 16785.

Almost surely, 2139719024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139719024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199209348).

139719024 is an abundant number, since it is smaller than the sum of its proper divisors (258699672).

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

139719024 is a wasteful number, since it uses less digits than its factorization.

139719024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18374 (or 18365 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 139719024 is about 11820.2801997245. The cubic root of 139719024 is about 518.9018046263.

The spelling of 139719024 in words is "one hundred thirty-nine million, seven hundred nineteen thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 53 72 106 144 159 212 318 424 477 636 848 954 1272 1908 2544 3816 7632 18307 36614 54921 73228 109842 146456 164763 219684 292912 329526 439368 659052 878736 970271 1318104 1940542 2636208 2910813 3881084 5821626 7762168 8732439 11643252 15524336 17464878 23286504 34929756 46573008 69859512 139719024