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22890148 = 226785411
BaseRepresentation
bin101011101010…
…0011010100100
31121001221101021
41113110122210
521324441043
62134340524
7365364061
oct127243244
947057337
1022890148
1111a14786
1277ba744
134985a88
14307bc68
1520223ed
hex15d46a4

22890148 has 12 divisors (see below), whose sum is σ = 40656112. Its totient is φ = 11274120.

The previous prime is 22890113. The next prime is 22890151. The reversal of 22890148 is 84109822.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42438 + ... + 42973.

Almost surely, 222890148 is an apocalyptic number.

It is an amenable number.

22890148 is a deficient number, since it is larger than the sum of its proper divisors (17765964).

22890148 is a wasteful number, since it uses less digits than its factorization.

22890148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85482 (or 85480 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 22890148 is about 4784.3649526348. The cubic root of 22890148 is about 283.9332151367.

The spelling of 22890148 in words is "twenty-two million, eight hundred ninety thousand, one hundred forty-eight".

Divisors: 1 2 4 67 134 268 85411 170822 341644 5722537 11445074 22890148