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61245088 = 2531107577
BaseRepresentation
bin1110100110100…
…0011010100000
311021020120110121
43221220122200
5111134320323
610024410024
71342401052
oct351503240
9137216417
1061245088
1131631383
1218616914
13c8c48c8
1481c38d2
15559ba5d
hex3a686a0

61245088 has 48 divisors (see below), whose sum is σ = 125846784. Its totient is φ = 29306880.

The previous prime is 61245077. The next prime is 61245091. The reversal of 61245088 is 88054216.

It is a super-3 number, since 3×612450883 (a number of 24 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 105856 + ... + 106432.

It is an arithmetic number, because the mean of its divisors is an integer number (2621808).

Almost surely, 261245088 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 61245088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62923392).

61245088 is an abundant number, since it is smaller than the sum of its proper divisors (64601696).

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

61245088 is a wasteful number, since it uses less digits than its factorization.

61245088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725 (or 717 counting only the distinct ones).

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

The square root of 61245088 is about 7825.9240987886. The cubic root of 61245088 is about 394.1762204839.

The spelling of 61245088 in words is "sixty-one million, two hundred forty-five thousand, eighty-eight".

Divisors: 1 2 4 8 16 31 32 62 107 124 214 248 428 496 577 856 992 1154 1712 2308 3317 3424 4616 6634 9232 13268 17887 18464 26536 35774 53072 61739 71548 106144 123478 143096 246956 286192 493912 572384 987824 1913909 1975648 3827818 7655636 15311272 30622544 61245088