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61429600 = 2552312477
BaseRepresentation
bin1110101001010…
…1011101100000
311021120221120101
43222111131200
5111211221400
610032352144
71344100021
oct352253540
9137527511
1061429600
1131747a71
12186a5654
13c95a89b
148230c48
1555d656a
hex3a95760

61429600 has 72 divisors (see below), whose sum is σ = 154865088. Its totient is φ = 23769600.

The previous prime is 61429579. The next prime is 61429601. The reversal of 61429600 is 692416.

61429600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61429601) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 23562 + ... + 26038.

It is an arithmetic number, because the mean of its divisors is an integer number (2150904).

Almost surely, 261429600 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61429600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77432544).

61429600 is an abundant number, since it is smaller than the sum of its proper divisors (93435488).

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

61429600 is a wasteful number, since it uses less digits than its factorization.

61429600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528 (or 2515 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61429600 is about 7837.7037453581. The cubic root of 61429600 is about 394.5716662220.

The spelling of 61429600 in words is "sixty-one million, four hundred twenty-nine thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 31 32 40 50 62 80 100 124 155 160 200 248 310 400 496 620 775 800 992 1240 1550 2477 2480 3100 4954 4960 6200 9908 12385 12400 19816 24770 24800 39632 49540 61925 76787 79264 99080 123850 153574 198160 247700 307148 383935 396320 495400 614296 767870 990800 1228592 1535740 1919675 1981600 2457184 3071480 3839350 6142960 7678700 12285920 15357400 30714800 61429600