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157401853885 = 563277497501
BaseRepresentation
bin1001001010010111100…
…0011010111110111101
3120001021121100122120001
42102211320122332331
510034324333311020
6200150455554301
714241364453123
oct2224570327675
9501247318501
10157401853885
1160832274571
122660968b991
1311ac5bc5763
147892835913
15416382650a
hex24a5e1afbd

157401853885 has 8 divisors (see below), whose sum is σ = 188885589336. Its totient is φ = 125919240000.

The previous prime is 157401853813. The next prime is 157401853909. The reversal of 157401853885 is 588358104751.

It can be written as a sum of positive squares in 4 ways, for example, as 1340511769 + 156061342116 = 36613^2 + 395046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157401853885 - 215 = 157401821117 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 67635 + ... + 565135.

It is an arithmetic number, because the mean of its divisors is an integer number (23610698667).

Almost surely, 2157401853885 is an apocalyptic number.

It is an amenable number.

157401853885 is a deficient number, since it is larger than the sum of its proper divisors (31483735451).

157401853885 is an equidigital number, since it uses as much as digits as its factorization.

157401853885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560783.

The product of its (nonzero) digits is 5376000, while the sum is 55.

The spelling of 157401853885 in words is "one hundred fifty-seven billion, four hundred one million, eight hundred fifty-three thousand, eight hundred eighty-five".

Divisors: 1 5 63277 316385 497501 2487505 31480370777 157401853885