Search a number
-
+
61825408 = 273115581
BaseRepresentation
bin1110101111011…
…0000110000000
311022100001111221
43223312012000
5111311403113
610045044424
71350336001
oct353660600
9138301457
1061825408
1131998387
1218856714
13ca68aa8
1482d51a8
15566398d
hex3af6180

61825408 has 32 divisors (see below), whose sum is σ = 127149120. Its totient is φ = 29913600.

The previous prime is 61825369. The next prime is 61825429. The reversal of 61825408 is 80452816.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3823 + ... + 11758.

It is an arithmetic number, because the mean of its divisors is an integer number (3973410).

Almost surely, 261825408 is an apocalyptic number.

It is an amenable number.

61825408 is an abundant number, since it is smaller than the sum of its proper divisors (65323712).

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

61825408 is a wasteful number, since it uses less digits than its factorization.

61825408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15626 (or 15614 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 61825408 is about 7862.9134549479. The cubic root of 61825408 is about 395.4172976011.

The spelling of 61825408 in words is "sixty-one million, eight hundred twenty-five thousand, four hundred eight".

Divisors: 1 2 4 8 16 31 32 62 64 124 128 248 496 992 1984 3968 15581 31162 62324 124648 249296 483011 498592 966022 997184 1932044 1994368 3864088 7728176 15456352 30912704 61825408