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61798996 = 2273311453
BaseRepresentation
bin1110101110111…
…1101001010100
311022021201021201
43223233221110
5111310031441
610044322244
71350166000
oct353575124
9138251251
1061798996
113197a556
1218843384
13ca59a6c
1482c9700
15565ac31
hex3aefa54

61798996 has 48 divisors (see below), whose sum is σ = 130278400. Its totient is φ = 25613280.

The previous prime is 61798987. The next prime is 61799009. The reversal of 61798996 is 69989716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41806 + ... + 43258.

Almost surely, 261798996 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 61798996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65139200).

61798996 is an abundant number, since it is smaller than the sum of its proper divisors (68479404).

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

61798996 is a wasteful number, since it uses less digits than its factorization.

61798996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1493 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 55.

The square root of 61798996 is about 7861.2337454117. The cubic root of 61798996 is about 395.3609817619.

The spelling of 61798996 in words is "sixty-one million, seven hundred ninety-eight thousand, nine hundred ninety-six".

Divisors: 1 2 4 7 14 28 31 49 62 98 124 196 217 343 434 686 868 1372 1453 1519 2906 3038 5812 6076 10171 10633 20342 21266 40684 42532 45043 71197 90086 142394 180172 284788 315301 498379 630602 996758 1261204 1993516 2207107 4414214 8828428 15449749 30899498 61798996