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190970404 = 22711574283
BaseRepresentation
bin10110110000111…
…11101000100100
3111022100022010221
423120133220210
5342342023104
630541054124
74506136012
oct1330375044
9438308127
10190970404
1198885989
1253b57344
1330745351
141b5118b2
1511b73c54
hexb61fa24

190970404 has 24 divisors (see below), whose sum is σ = 341143488. Its totient is φ = 93518880.

The previous prime is 190970393. The next prime is 190970407. The reversal of 190970404 is 404079091.

190970404 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 190970404.

It is not an unprimeable number, because it can be changed into a prime (190970407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42447 + ... + 46729.

It is an arithmetic number, because the mean of its divisors is an integer number (14214312).

Almost surely, 2190970404 is an apocalyptic number.

It is an amenable number.

190970404 is a deficient number, since it is larger than the sum of its proper divisors (150173084).

190970404 is a wasteful number, since it uses less digits than its factorization.

190970404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515 (or 4513 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 190970404 is about 13819.2041739023. The cubic root of 190970404 is about 575.8667749046.

The spelling of 190970404 in words is "one hundred ninety million, nine hundred seventy thousand, four hundred four".

Divisors: 1 2 4 71 142 157 284 314 628 4283 8566 11147 17132 22294 44588 304093 608186 672431 1216372 1344862 2689724 47742601 95485202 190970404