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2887474894 = 23761639671
BaseRepresentation
bin1010110000011011…
…0101111011001110
321110020021220220121
42230012311323032
521403143144034
61154304335154
7131361063103
oct25406657316
97406256817
102887474894
1112519a4697
126870144ba
133702a6a35
141d56b4aaa
1511d7681b4
hexac1b5ece

2887474894 has 16 divisors (see below), whose sum is σ = 4521201696. Its totient is φ = 1381687200.

The previous prime is 2887474879. The next prime is 2887474903. The reversal of 2887474894 is 4984747882.

It is a super-2 number, since 2×28874748942 = 16675022526960622472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

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, 315322 + ... + 324349.

It is an arithmetic number, because the mean of its divisors is an integer number (282575106).

Almost surely, 22887474894 is an apocalyptic number.

2887474894 is a deficient number, since it is larger than the sum of its proper divisors (1633726802).

2887474894 is a wasteful number, since it uses less digits than its factorization.

2887474894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639771.

The product of its digits is 28901376, while the sum is 61.

The square root of 2887474894 is about 53735.2295426380. The cubic root of 2887474894 is about 1423.9871565852.

The spelling of 2887474894 in words is "two billion, eight hundred eighty-seven million, four hundred seventy-four thousand, eight hundred ninety-four".

Divisors: 1 2 37 61 74 122 2257 4514 639671 1279342 23667827 39019931 47335654 78039862 1443737447 2887474894