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28714744458902 = 267214289137753
BaseRepresentation
bin1101000011101101011000…
…01001001010111010010110
310202200002202220122102110102
412201312230021022322112
512230430244040141102
6141023212124254102
76022400064503255
oct641665411127226
9122602686572412
1028714744458902
119170944723097
1232791399a1332
131303a33c5b308
14713b3010679c
1534be0a53c402
hex1a1dac24ae96

28714744458902 has 8 divisors (see below), whose sum is σ = 43714984101816. Its totient is φ = 14143083091632.

The previous prime is 28714744458857. The next prime is 28714744458913. The reversal of 28714744458902 is 20985444741782.

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

It is a super-2 number, since 2×287147444589022 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107144568743 + ... + 107144569010.

It is an arithmetic number, because the mean of its divisors is an integer number (5464373012727).

Almost surely, 228714744458902 is an apocalyptic number.

28714744458902 is a deficient number, since it is larger than the sum of its proper divisors (15000239642914).

28714744458902 is a wasteful number, since it uses less digits than its factorization.

28714744458902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214289137822.

The product of its (nonzero) digits is 144506880, while the sum is 65.

The spelling of 28714744458902 in words is "twenty-eight trillion, seven hundred fourteen billion, seven hundred forty-four million, four hundred fifty-eight thousand, nine hundred two".

Divisors: 1 2 67 134 214289137753 428578275506 14357372229451 28714744458902