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2890693854 = 2321217131959
BaseRepresentation
bin1010110001001100…
…0111110011011110
321110110100110111100
42230103013303132
521410004200404
61154501333530
7131430330606
oct25423076336
97413313440
102890693854
1112537a3094
126881072a6
13370b62c49
141d5cb1c06
1511dba1d39
hexac4c7cde

2890693854 has 24 divisors (see below), whose sum is σ = 6268363920. Its totient is φ = 962765568.

The previous prime is 2890693837. The next prime is 2890693909. The reversal of 2890693854 is 4583960982.

It is a super-2 number, since 2×28906938542 = 16712221915106746632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2890693854.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44074 + ... + 87885.

It is an arithmetic number, because the mean of its divisors is an integer number (261181830).

Almost surely, 22890693854 is an apocalyptic number.

2890693854 is an abundant number, since it is smaller than the sum of its proper divisors (3377670066).

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

2890693854 is a wasteful number, since it uses less digits than its factorization.

2890693854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133184 (or 133181 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 2890693854 is about 53765.1732443968. The cubic root of 2890693854 is about 1424.5161141917.

It can be divided in two parts, 28906 and 93854, that added together give a triangular number (122760 = T495).

The spelling of 2890693854 in words is "two billion, eight hundred ninety million, six hundred ninety-three thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 9 18 1217 2434 3651 7302 10953 21906 131959 263918 395877 791754 1187631 2375262 160594103 321188206 481782309 963564618 1445346927 2890693854