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487890252321 = 32414011682827
BaseRepresentation
bin1110001100110001000…
…01100111001000100001
31201122022220120210101020
413012120201213020201
530443144401033241
61012044513200053
750151242501463
oct7063041471041
91648286523336
10487890252321
11178a0536786a
127a681560029
133701433b9c4
1419884bd8133
15ca57934b66
hex7198867221

487890252321 has 16 divisors (see below), whose sum is σ = 654848956608. Its totient is φ = 323102592000.

The previous prime is 487890252281. The next prime is 487890252329. The reversal of 487890252321 is 123252098784.

It is not a de Polignac number, because 487890252321 - 218 = 487889990177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487890252329) 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, 551491 + ... + 1131336.

It is an arithmetic number, because the mean of its divisors is an integer number (40928059788).

Almost surely, 2487890252321 is an apocalyptic number.

It is an amenable number.

487890252321 is a deficient number, since it is larger than the sum of its proper divisors (166958704287).

487890252321 is a wasteful number, since it uses less digits than its factorization.

487890252321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683472.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 487890252321 in words is "four hundred eighty-seven billion, eight hundred ninety million, two hundred fifty-two thousand, three hundred twenty-one".

Divisors: 1 3 241 401 723 1203 96641 289923 1682827 5048481 405561307 674813627 1216683921 2024440881 162630084107 487890252321