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42200146 = 261334421
BaseRepresentation
bin1010000011111…
…0110001010010
32221101222201101
42200332301102
541300401041
64104255014
71021460332
oct240766122
987358641
1042200146
112190365a
121217146a
138987101
1458670c2
153a88b31
hex283ec52

42200146 has 8 divisors (see below), whose sum is σ = 63405324. Its totient is φ = 21065040.

The previous prime is 42200143. The next prime is 42200153. The reversal of 42200146 is 64100224.

It can be written as a sum of positive squares in 2 ways, for example, as 42107121 + 93025 = 6489^2 + 305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (42200143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15985 + ... + 18436.

Almost surely, 242200146 is an apocalyptic number.

42200146 is a deficient number, since it is larger than the sum of its proper divisors (21205178).

42200146 is a wasteful number, since it uses less digits than its factorization.

42200146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35036.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42200146 is about 6496.1639449755. The cubic root of 42200146 is about 348.1539427689.

The spelling of 42200146 in words is "forty-two million, two hundred thousand, one hundred forty-six".

Divisors: 1 2 613 1226 34421 68842 21100073 42200146