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139988743840 = 25511611303919
BaseRepresentation
bin1000001001011111111…
…0101011011010100000
3111101100001112000012101
42002113332223122200
54243144104300330
6144150540340144
713054023455341
oct2022776533240
9441301460171
10139988743840
1154406aa6230
1223169b44654
131027c45074a
146abdd3c0c8
153994c4b4ca
hex2097fab6a0

139988743840 has 96 divisors (see below), whose sum is σ = 366704029440. Its totient is φ = 50070451200.

The previous prime is 139988743789. The next prime is 139988743859. The reversal of 139988743840 is 48347889931.

139988743840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1399887438402 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544600 + ... + 759319.

It is an arithmetic number, because the mean of its divisors is an integer number (3819833640).

Almost surely, 2139988743840 is an apocalyptic number.

139988743840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139988743840 is an abundant number, since it is smaller than the sum of its proper divisors (226715285600).

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

139988743840 is a wasteful number, since it uses less digits than its factorization.

139988743840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304006 (or 1303998 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 139988743840 in words is "one hundred thirty-nine billion, nine hundred eighty-eight million, seven hundred forty-three thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 61 80 88 110 122 160 176 220 244 305 352 440 488 610 671 880 976 1220 1342 1760 1952 2440 2684 3355 4880 5368 6710 9760 10736 13420 21472 26840 53680 107360 1303919 2607838 5215676 6519595 10431352 13039190 14343109 20862704 26078380 28686218 41725408 52156760 57372436 71715545 79539059 104313520 114744872 143431090 159078118 208627040 229489744 286862180 318156236 397695295 458979488 573724360 636312472 795390590 874929649 1147448720 1272624944 1590781180 1749859298 2294897440 2545249888 3181562360 3499718596 4374648245 6363124720 6999437192 8749296490 12726249440 13998874384 17498592980 27997748768 34997185960 69994371920 139988743840