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139202880 = 2635373919
BaseRepresentation
bin10000100110000…
…01000101000000
3100200221020110020
420103001011000
5241113443010
621451333440
73310130205
oct1023010500
9320836406
10139202880
1171638203
123a751280
1322abb58b
14146b7cac
15c34a470
hex84c1140

139202880 has 112 divisors (see below), whose sum is σ = 454030080. Its totient is φ = 36108288.

The previous prime is 139202879. The next prime is 139202891. The reversal of 139202880 is 88202931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33561 + ... + 37479.

It is an arithmetic number, because the mean of its divisors is an integer number (4053840).

Almost surely, 2139202880 is an apocalyptic number.

139202880 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 139202880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227015040).

139202880 is an abundant number, since it is smaller than the sum of its proper divisors (314827200).

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

139202880 is a wasteful number, since it uses less digits than its factorization.

139202880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976 (or 3966 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 139202880 is about 11798.4270138015. The cubic root of 139202880 is about 518.2620479596.

The spelling of 139202880 in words is "one hundred thirty-nine million, two hundred two thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 37 40 48 60 64 74 80 96 111 120 148 160 185 192 222 240 296 320 370 444 480 555 592 740 888 960 1110 1184 1480 1776 2220 2368 2960 3552 3919 4440 5920 7104 7838 8880 11757 11840 15676 17760 19595 23514 31352 35520 39190 47028 58785 62704 78380 94056 117570 125408 145003 156760 188112 235140 250816 290006 313520 376224 435009 470280 580012 627040 725015 752448 870018 940560 1160024 1254080 1450030 1740036 1881120 2175045 2320048 2900060 3480072 3762240 4350090 4640096 5800120 6960144 8700180 9280192 11600240 13920288 17400360 23200480 27840576 34800720 46400960 69601440 139202880