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61329201 = 3237911251
BaseRepresentation
bin1110100111110…
…0111100110001
311021101211211220
43221330330301
5111200013301
610030255253
71343201223
oct351747461
9137354756
1061329201
113168959a
1218657529
13c923c8b
148206413
1555b6936
hex3a7cf31

61329201 has 16 divisors (see below), whose sum is σ = 86415360. Its totient is φ = 38610000.

The previous prime is 61329193. The next prime is 61329211. The reversal of 61329201 is 10292316.

It is not a de Polignac number, because 61329201 - 23 = 61329193 is a prime.

It is a super-2 number, since 2×613292012 = 7522541790596802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61329211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175 + ... + 11076.

It is an arithmetic number, because the mean of its divisors is an integer number (5400960).

Almost surely, 261329201 is an apocalyptic number.

It is an amenable number.

61329201 is a deficient number, since it is larger than the sum of its proper divisors (25086159).

61329201 is a wasteful number, since it uses less digits than its factorization.

61329201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11356.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 61329201 is about 7831.2962528562. The cubic root of 61329201 is about 394.3565896571.

The spelling of 61329201 in words is "sixty-one million, three hundred twenty-nine thousand, two hundred one".

Divisors: 1 3 23 69 79 237 1817 5451 11251 33753 258773 776319 888829 2666487 20443067 61329201