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139374760 = 23573116057
BaseRepresentation
bin10000100111010…
…11000010101000
3100201020222020011
420103223002220
5241134443020
621455141304
73311444260
oct1023530250
9321228204
10139374760
1171745358
123a814834
1322b4b895
14147207a0
15c38135a
hex84eb0a8

139374760 has 64 divisors (see below), whose sum is σ = 369976320. Its totient is φ = 46241280.

The previous prime is 139374737. The next prime is 139374797. The reversal of 139374760 is 67473931.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652 + ... + 16708.

It is an arithmetic number, because the mean of its divisors is an integer number (5780880).

Almost surely, 2139374760 is an apocalyptic number.

139374760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139374760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184988160).

139374760 is an abundant number, since it is smaller than the sum of its proper divisors (230601560).

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

139374760 is a wasteful number, since it uses less digits than its factorization.

139374760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16106 (or 16102 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 40.

The square root of 139374760 is about 11805.7087885480. The cubic root of 139374760 is about 518.4752673095.

The spelling of 139374760 in words is "one hundred thirty-nine million, three hundred seventy-four thousand, seven hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 31 35 40 56 62 70 124 140 155 217 248 280 310 434 620 868 1085 1240 1736 2170 4340 8680 16057 32114 64228 80285 112399 128456 160570 224798 321140 449596 497767 561995 642280 899192 995534 1123990 1991068 2247980 2488835 3484369 3982136 4495960 4977670 6968738 9955340 13937476 17421845 19910680 27874952 34843690 69687380 139374760