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61346972 = 2219807197
BaseRepresentation
bin1110101000000…
…1010010011100
311021102202020002
43222001102130
5111201100342
610030513432
71343304101
oct352012234
9137382202
1061346972
11316a0985
1218665878
13c92c0ab
14820caa8
1555bbd32
hex3a8149c

61346972 has 12 divisors (see below), whose sum is σ = 113007720. Its totient is φ = 29059056.

The previous prime is 61346963. The next prime is 61346981. The reversal of 61346972 is 27964316.

It is an interprime number because it is at equal distance from previous prime (61346963) and next prime (61346981).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403523 + ... + 403674.

It is an arithmetic number, because the mean of its divisors is an integer number (9417310).

Almost surely, 261346972 is an apocalyptic number.

It is an amenable number.

61346972 is a deficient number, since it is larger than the sum of its proper divisors (51660748).

61346972 is a wasteful number, since it uses less digits than its factorization.

61346972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807220 (or 807218 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 61346972 is about 7832.4307848841. The cubic root of 61346972 is about 394.3946761045.

The spelling of 61346972 in words is "sixty-one million, three hundred forty-six thousand, nine hundred seventy-two".

Divisors: 1 2 4 19 38 76 807197 1614394 3228788 15336743 30673486 61346972