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20566992374 = 2107827311617
BaseRepresentation
bin10011001001111000…
…110110010111110110
31222002100102110120022
4103021320312113312
5314110122223444
613240502005142
71325445356615
oct231170662766
958070373508
1020566992374
1187a4592865
123b9ba167b2
131c29cb7596
14dd171987c
158059189ee
hex4c9e365f6

20566992374 has 16 divisors (see below), whose sum is σ = 31145255568. Its totient is φ = 10185280512.

The previous prime is 20566992359. The next prime is 20566992389. The reversal of 20566992374 is 47329966502.

It is an interprime number because it is at equal distance from previous prime (20566992359) and next prime (20566992389).

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, 1764614 + ... + 1776230.

It is an arithmetic number, because the mean of its divisors is an integer number (1946578473).

Almost surely, 220566992374 is an apocalyptic number.

20566992374 is a deficient number, since it is larger than the sum of its proper divisors (10578263194).

20566992374 is a wasteful number, since it uses less digits than its factorization.

20566992374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19999.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 20566992374 in words is "twenty billion, five hundred sixty-six million, nine hundred ninety-two thousand, three hundred seventy-four".

Divisors: 1 2 107 214 8273 11617 16546 23234 885211 1243019 1770422 2486038 96107441 192214882 10283496187 20566992374