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100642452140 = 22522722167941
BaseRepresentation
bin101110110111011000…
…0011111001010101100
3100121202221112021220102
41131232300133022230
53122103431432030
6114122353010232
710162004504546
oct1355660371254
9317687467812
10100642452140
113975604998a
1217608b53978
13964b950039
144c2a4d8696
152940840c45
hex176ec1f2ac

100642452140 has 24 divisors (see below), whose sum is σ = 212280212592. Its totient is φ = 40079635520.

The previous prime is 100642452137. The next prime is 100642452161. The reversal of 100642452140 is 41254246001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11079431 + ... + 11088510.

It is an arithmetic number, because the mean of its divisors is an integer number (8845008858).

Almost surely, 2100642452140 is an apocalyptic number.

100642452140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100642452140 is an abundant number, since it is smaller than the sum of its proper divisors (111637760452).

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

100642452140 is a wasteful number, since it uses less digits than its factorization.

100642452140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22168177 (or 22168175 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 100642452140 its reverse (41254246001), we get a palindrome (141896698141).

The spelling of 100642452140 in words is "one hundred billion, six hundred forty-two million, four hundred fifty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 227 454 908 1135 2270 4540 22167941 44335882 88671764 110839705 221679410 443358820 5032122607 10064245214 20128490428 25160613035 50321226070 100642452140