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190020932 = 2247505233
BaseRepresentation
bin10110101001101…
…11110101000100
3111020120001201022
423110313311010
5342121132212
630504450312
74465102613
oct1324676504
9436501638
10190020932
11982975a2
1253779998
13304a212a
141b34587a
1511a37772
hexb537d44

190020932 has 6 divisors (see below), whose sum is σ = 332536638. Its totient is φ = 95010464.

The previous prime is 190020931. The next prime is 190020983. The reversal of 190020932 is 239020091.

It can be written as a sum of positive squares in only one way, i.e., 139098436 + 50922496 = 11794^2 + 7136^2 .

It is a super-2 number, since 2×1900209322 = 72215909196297248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190020931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23752613 + ... + 23752620.

It is an arithmetic number, because the mean of its divisors is an integer number (55422773).

Almost surely, 2190020932 is an apocalyptic number.

It is an amenable number.

190020932 is a deficient number, since it is larger than the sum of its proper divisors (142515706).

190020932 is a wasteful number, since it uses less digits than its factorization.

190020932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47505237 (or 47505235 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 190020932 is about 13784.8080146225. The cubic root of 190020932 is about 574.9108186831.

The spelling of 190020932 in words is "one hundred ninety million, twenty thousand, nine hundred thirty-two".

Divisors: 1 2 4 47505233 95010466 190020932