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141988811940 = 223251300960637
BaseRepresentation
bin1000010000111100110…
…0010101010010100100
3111120111102222222211200
42010033030111102210
54311243113440230
6145121225002500
713154420662563
oct2041714252244
9446442888750
10141988811940
1155242a89a78
1223627923430
131050a91cab1
146c2d813bda
153a60624160
hex210f3154a4

141988811940 has 72 divisors (see below), whose sum is σ = 430739607480. Its totient is φ = 37860148224.

The previous prime is 141988811917. The next prime is 141988811957. The reversal of 141988811940 is 49118889141.

It can be written as a sum of positive squares in 4 ways, for example, as 33658305444 + 108330506496 = 183462^2 + 329136^2 .

It is a super-2 number, since 2×1419888119402 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2311302 + ... + 2371938.

Almost surely, 2141988811940 is an apocalyptic number.

141988811940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141988811940 is an abundant number, since it is smaller than the sum of its proper divisors (288750795540).

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

141988811940 is a wasteful number, since it uses less digits than its factorization.

141988811940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73661 (or 73656 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 54.

The spelling of 141988811940 in words is "one hundred forty-one billion, nine hundred eighty-eight million, eight hundred eleven thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 13009 26018 39027 52036 60637 65045 78054 117081 121274 130090 156108 181911 195135 234162 242548 260180 303185 363822 390270 468324 545733 585405 606370 727644 780540 909555 1091466 1170810 1212740 1819110 2182932 2341620 2728665 3638220 5457330 10914660 788826733 1577653466 2366480199 3155306932 3944133665 4732960398 7099440597 7888267330 9465920796 11832400995 14198881194 15776534660 23664801990 28397762388 35497202985 47329603980 70994405970 141988811940