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190026225 = 32529192
BaseRepresentation
bin10110101001110…
…01000111110001
3111020120022222100
423110321013301
5342121314400
630504531013
74465124214
oct1324710761
9436508870
10190026225
11982a0574
1253780a69
13304a466c
141b34777b
1511a39100
hexb5391f1

190026225 has 27 divisors (see below), whose sum is σ = 340728843. Its totient is φ = 101237040.

The previous prime is 190026211. The next prime is 190026247. The reversal of 190026225 is 522620091.

The square root of 190026225 is 13785.

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., 68409441 + 121616784 = 8271^2 + 11028^2 .

It is not a de Polignac number, because 190026225 - 27 = 190026097 is a prime.

It is a super-2 number, since 2×1900262252 = 72219932375501250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

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, 206316 + ... + 207234.

Almost surely, 2190026225 is an apocalyptic number.

190026225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

190026225 is the 13785-th square number.

190026225 is the 6893-rd centered octagonal number.

It is an amenable number.

190026225 is a deficient number, since it is larger than the sum of its proper divisors (150702618).

190026225 is an frugal number, since it uses more digits than its factorization.

190026225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The cubic root of 190026225 is about 574.9161566471.

The spelling of 190026225 in words is "one hundred ninety million, twenty-six thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 919 2757 4595 8271 13785 22975 41355 68925 206775 844561 2533683 4222805 7601049 12668415 21114025 38005245 63342075 190026225