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61357148 = 2217902311
BaseRepresentation
bin1110101000001…
…1110001011100
311021110021011222
43222003301130
5111201412043
610031032512
71343345546
oct352036134
9137407158
1061357148
11316a8596
121866b738
13c933908
148212696
1555bed68
hex3a83c5c

61357148 has 12 divisors (see below), whose sum is σ = 113691312. Its totient is φ = 28873920.

The previous prime is 61357067. The next prime is 61357151. The reversal of 61357148 is 84175316.

61357148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×613571482 = 7529399221387808, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 451088 + ... + 451223.

It is an arithmetic number, because the mean of its divisors is an integer number (9474276).

Almost surely, 261357148 is an apocalyptic number.

61357148 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61357148 is a deficient number, since it is larger than the sum of its proper divisors (52334164).

61357148 is a wasteful number, since it uses less digits than its factorization.

61357148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902332 (or 902330 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 61357148 is about 7833.0803647097. The cubic root of 61357148 is about 394.4164817901.

The spelling of 61357148 in words is "sixty-one million, three hundred fifty-seven thousand, one hundred forty-eight".

Divisors: 1 2 4 17 34 68 902311 1804622 3609244 15339287 30678574 61357148