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61032190 = 2541148859
BaseRepresentation
bin1110100011010…
…0011011111110
311020211202102111
43220310123332
5111111012230
610020044234
71340523262
oct350643376
9136752374
1061032190
11314a642a
121853367a
13c84ba2b
14816a0a2
15555892a
hex3a346fe

61032190 has 16 divisors (see below), whose sum is σ = 112538160. Its totient is φ = 23817280.

The previous prime is 61032187. The next prime is 61032221. The reversal of 61032190 is 9123016.

It is a super-2 number, since 2×610321902 = 7449856432392200, which contains 22 as substring.

It is a congruent 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, 74020 + ... + 74839.

It is an arithmetic number, because the mean of its divisors is an integer number (7033635).

Almost surely, 261032190 is an apocalyptic number.

61032190 is a deficient number, since it is larger than the sum of its proper divisors (51505970).

61032190 is a wasteful number, since it uses less digits than its factorization.

61032190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148907.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 61032190 is about 7812.3101576934. The cubic root of 61032190 is about 393.7189497645.

The spelling of 61032190 in words is "sixty-one million, thirty-two thousand, one hundred ninety".

Divisors: 1 2 5 10 41 82 205 410 148859 297718 744295 1488590 6103219 12206438 30516095 61032190