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190920933025 = 5231228192
BaseRepresentation
bin1011000111001111000…
…1100011111010100001
3200020210121102021222121
42301303301203322201
511112001224324100
6223412522104241
716536125103664
oct2616361437241
9606717367877
10190920933025
1173a72986869
123100304b081
13150083773b4
1493523a76db
154e7637a51a
hex2c73c63ea1

190920933025 has 27 divisors (see below), whose sum is σ = 244711951923. Its totient is φ = 147757321200.

The previous prime is 190920933011. The next prime is 190920933053. The reversal of 190920933025 is 520339029091.

The square root of 190920933025 is 436945.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 68731535889 + 122189397136 = 262167^2 + 349556^2 .

It is not a de Polignac number, because 190920933025 - 27 = 190920932897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 67725066 + ... + 67727884.

Almost surely, 2190920933025 is an apocalyptic number.

190920933025 is the 436945-th square number.

190920933025 is the 218473-rd centered octagonal number.

It is an amenable number.

190920933025 is a deficient number, since it is larger than the sum of its proper divisors (53791018898).

190920933025 is an frugal number, since it uses more digits than its factorization.

190920933025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5710 (or 2855 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 43.

The spelling of 190920933025 in words is "one hundred ninety billion, nine hundred twenty million, nine hundred thirty-three thousand, twenty-five".

Divisors: 1 5 25 31 155 775 961 2819 4805 14095 24025 70475 87389 436945 2184725 2709059 7946761 13545295 39733805 67726475 198669025 246349591 1231747955 6158739775 7636837321 38184186605 190920933025