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140902142820 = 223529731109291
BaseRepresentation
bin1000001100111001101…
…1000001001101100100
3111110200201020111001020
42003032123001031210
54302031422032240
6144421325531140
713115454311205
oct2031633011544
9443621214036
10140902142820
115483564a41a
1223383a13ab0
1310396758b0a
146b693855ac
1539ea0230d0
hex20ce6c1364

140902142820 has 96 divisors (see below), whose sum is σ = 413721544320. Its totient is φ = 35781258240.

The previous prime is 140902142813. The next prime is 140902142837. The reversal of 140902142820 is 28241209041.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427626 + ... + 681665.

It is an arithmetic number, because the mean of its divisors is an integer number (4309599420).

Almost surely, 2140902142820 is an apocalyptic number.

140902142820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140902142820 is an abundant number, since it is smaller than the sum of its proper divisors (272819401500).

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

140902142820 is a wasteful number, since it uses less digits than its factorization.

140902142820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109405 (or 1109403 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 140902142820 in words is "one hundred forty billion, nine hundred two million, one hundred forty-two thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 73 87 116 145 146 174 219 290 292 348 365 435 438 580 730 870 876 1095 1460 1740 2117 2190 4234 4380 6351 8468 10585 12702 21170 25404 31755 42340 63510 127020 1109291 2218582 3327873 4437164 5546455 6655746 11092910 13311492 16639365 22185820 32169439 33278730 64338878 66557460 80978243 96508317 128677756 160847195 161956486 193016634 242934729 321694390 323912972 386033268 404891215 482541585 485869458 643388780 809782430 965083170 971738916 1214673645 1619564860 1930166340 2348369047 2429347290 4696738094 4858694580 7045107141 9393476188 11741845235 14090214282 23483690470 28180428564 35225535705 46967380940 70451071410 140902142820