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2857142857460 = 2256011019233267
BaseRepresentation
bin101001100100111010111…
…111000010111011110100
3101010010210012100111221212
4221210322333002323310
5333302412032414320
610024315303100552
7413264443403123
oct51447277027364
911103705314855
102857142857460
11a01786726111
123a1897441758
13179573054528
149c40204baba
154e4c2c9b9c5
hex2993afc2ef4

2857142857460 has 48 divisors (see below), whose sum is σ = 6015907074240. Its totient is φ = 1139830982400.

The previous prime is 2857142857447. The next prime is 2857142857483. The reversal of 2857142857460 is 647582417582.

It is a self number, because there is not a number n which added to its sum of digits gives 2857142857460.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12131747 + ... + 12365013.

It is an arithmetic number, because the mean of its divisors is an integer number (125331397380).

Almost surely, 22857142857460 is an apocalyptic number.

2857142857460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2857142857460 is an abundant number, since it is smaller than the sum of its proper divisors (3158764216780).

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

2857142857460 is a wasteful number, since it uses less digits than its factorization.

2857142857460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234896 (or 234894 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 59.

The spelling of 2857142857460 in words is "two trillion, eight hundred fifty-seven billion, one hundred forty-two million, eight hundred fifty-seven thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 601 1019 1202 2038 2404 3005 4076 5095 6010 10190 12020 20380 233267 466534 612419 933068 1166335 1224838 2332670 2449676 3062095 4665340 6124190 12248380 140193467 237699073 280386934 475398146 560773868 700967335 950796292 1188495365 1401934670 2376990730 2803869340 4753981460 142857142873 285714285746 571428571492 714285714365 1428571428730 2857142857460