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61400376 = 2333284261
BaseRepresentation
bin1110101000111…
…0010100111000
311021112110111000
43222032110320
5111204303001
610032005000
71343615562
oct352162470
9137473430
1061400376
1131728014
1218690760
13c94a4ab
148224332
1555cca86
hex3a8e538

61400376 has 32 divisors (see below), whose sum is σ = 170557200. Its totient is φ = 20466720.

The previous prime is 61400359. The next prime is 61400387. The reversal of 61400376 is 67300416.

61400376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141915 + ... + 142346.

Almost surely, 261400376 is an apocalyptic number.

It is an amenable number.

61400376 is an abundant number, since it is smaller than the sum of its proper divisors (109156824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61400376 is a wasteful number, since it uses less digits than its factorization.

61400376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284276 (or 284266 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 61400376 is about 7835.8392020255. The cubic root of 61400376 is about 394.5090862312.

It can be divided in two parts, 61400 and 376, that added together give a triangular number (61776 = T351).

The spelling of 61400376 in words is "sixty-one million, four hundred thousand, three hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 284261 568522 852783 1137044 1705566 2274088 2558349 3411132 5116698 6822264 7675047 10233396 15350094 20466792 30700188 61400376