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142037215169840 = 2453198358263551
BaseRepresentation
bin100000010010111010011101…
…110000010100110100110000
3200121220121212201222220020222
4200102322131300110310300
5122104114204040413330
61222030555034152212
741626564413360434
oct4022723560246460
9617817781886228
10142037215169840
1141291710073a41
1213b1b91bb82668
13613408a0abb13
1427108d05529c4
151164aa97610e5
hex812e9dc14d30

142037215169840 has 80 divisors (see below), whose sum is σ = 341236106919936. Its totient is φ = 54926213856000.

The previous prime is 142037215169821. The next prime is 142037215169849. The reversal of 142037215169840 is 48961512730241.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (142037215169849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26693936 + ... + 31569615.

It is a 1-persistent number, because it is pandigital, but 2⋅142037215169840 = 284074430339680 is not.

Almost surely, 2142037215169840 is an apocalyptic number.

142037215169840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142037215169840 is an abundant number, since it is smaller than the sum of its proper divisors (199198891750096).

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

142037215169840 is a wasteful number, since it uses less digits than its factorization.

142037215169840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58264578 (or 58264572 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 142037215169840 in words is "one hundred forty-two trillion, thirty-seven billion, two hundred fifteen million, one hundred sixty-nine thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 983 1240 1966 2480 3932 4915 7864 9830 15728 19660 30473 39320 60946 78640 121892 152365 243784 304730 487568 609460 1218920 2437840 58263551 116527102 233054204 291317755 466108408 582635510 932216816 1165271020 1806170081 2330542040 3612340162 4661084080 7224680324 9030850405 14449360648 18061700810 28898721296 36123401620 57273070633 72246803240 114546141266 144493606480 229092282532 286365353165 458184565064 572730706330 916369130128 1145461412660 1775465189623 2290922825320 3550930379246 4581845650640 7101860758492 8877325948115 14203721516984 17754651896230 28407443033968 35509303792460 71018607584920 142037215169840