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881956002148 = 221316960692349
BaseRepresentation
bin11001101010110001010…
…11001001100101100100
310010022111000211000111121
430311120223021211210
5103422221214032043
61513055345543324
7120501456216544
oct14653053114544
93108430730447
10881956002148
11310043197181
12122b19344b44
13652253c23c0
1430988bc5324
1517e1d381ded
hexcd58ac9964

881956002148 has 12 divisors (see below), whose sum is σ = 1662147850300. Its totient is φ = 407056616352.

The previous prime is 881956002077. The next prime is 881956002157. The reversal of 881956002148 is 841200659188.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 444953034304 + 437002967844 = 667048^2 + 661062^2 .

It is a super-2 number, since 2×8819560021482 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 16960692349 = 881956002148 / (8 + 8 + 1 + 9 + 5 + 6 + 0 + 0 + 2 + 1 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 881956002095 and 881956002104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8480346123 + ... + 8480346226.

Almost surely, 2881956002148 is an apocalyptic number.

It is an amenable number.

881956002148 is a deficient number, since it is larger than the sum of its proper divisors (780191848152).

881956002148 is a wasteful number, since it uses less digits than its factorization.

881956002148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16960692366 (or 16960692364 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 881956002148 in words is "eight hundred eighty-one billion, nine hundred fifty-six million, two thousand, one hundred forty-eight".

Divisors: 1 2 4 13 26 52 16960692349 33921384698 67842769396 220489000537 440978001074 881956002148