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42151253 = 199722871
BaseRepresentation
bin1010000011001…
…0110101010101
32221022111122112
42200302311111
541242320003
64103240405
71021164644
oct240626525
987274575
1042151253
112187a951
1212149105
13896aa91
14585335b
153a793d8
hex2832d55

42151253 has 8 divisors (see below), whose sum is σ = 44829120. Its totient is φ = 39519360.

The previous prime is 42151231. The next prime is 42151261. The reversal of 42151253 is 35215124.

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

It is a cyclic number.

It is not a de Polignac number, because 42151253 - 26 = 42151189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42151453) 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, 9593 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (5603640).

Almost surely, 242151253 is an apocalyptic number.

It is an amenable number.

42151253 is a deficient number, since it is larger than the sum of its proper divisors (2677867).

42151253 is a wasteful number, since it uses less digits than its factorization.

42151253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22987.

The product of its digits is 1200, while the sum is 23.

The square root of 42151253 is about 6492.3996334175. The cubic root of 42151253 is about 348.0194340008.

Adding to 42151253 its reverse (35215124), we get a palindrome (77366377).

The spelling of 42151253 in words is "forty-two million, one hundred fifty-one thousand, two hundred fifty-three".

Divisors: 1 19 97 1843 22871 434549 2218487 42151253