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190982274 = 2374547197
BaseRepresentation
bin10110110001000…
…10100010000010
3111022100220102120
423120202202002
5342342413044
630541225110
74506215430
oct1330424202
9438326376
10190982274
119889389a
1253b62196
133074a882
141b515d50
1511b77519
hexb622882

190982274 has 16 divisors (see below), whose sum is σ = 436531008. Its totient is φ = 54566352.

The previous prime is 190982249. The next prime is 190982287. The reversal of 190982274 is 472289091.

190982274 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1909822742 = 72948457964422152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 4547197 = 190982274 / (1 + 9 + 0 + 9 + 8 + 2 + 2 + 7 + 4).

It is a Curzon 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, 2273557 + ... + 2273640.

It is an arithmetic number, because the mean of its divisors is an integer number (27283188).

Almost surely, 2190982274 is an apocalyptic number.

190982274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

190982274 is an abundant number, since it is smaller than the sum of its proper divisors (245548734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190982274 is a wasteful number, since it uses less digits than its factorization.

190982274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547209.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 190982274 is about 13819.6336420326. The cubic root of 190982274 is about 575.8787058929.

The spelling of 190982274 in words is "one hundred ninety million, nine hundred eighty-two thousand, two hundred seventy-four".

Divisors: 1 2 3 6 7 14 21 42 4547197 9094394 13641591 27283182 31830379 63660758 95491137 190982274