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61675040 = 2557531039
BaseRepresentation
bin1110101101000…
…1011000100000
311022001102020202
43223101120200
5111242100130
610041524332
71346141420
oct353213040
9138042222
1061675040
11318a5409
12187a36a8
13ca1550b
148296480
155634145
hex3ad1620

61675040 has 96 divisors (see below), whose sum is σ = 169827840. Its totient is φ = 20726784.

The previous prime is 61675013. The next prime is 61675051. The reversal of 61675040 is 4057616.

It is a junction number, because it is equal to n+sod(n) for n = 61674994 and 61675012.

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 15 ways as a sum of consecutive naturals, for example, 58841 + ... + 59879.

It is an arithmetic number, because the mean of its divisors is an integer number (1769040).

Almost surely, 261675040 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 61675040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84913920).

61675040 is an abundant number, since it is smaller than the sum of its proper divisors (108152800).

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

61675040 is a wasteful number, since it uses less digits than its factorization.

61675040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 61675040 is about 7853.3457838045. The cubic root of 61675040 is about 395.0964673857.

The spelling of 61675040 in words is "sixty-one million, six hundred seventy-five thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 53 56 70 80 106 112 140 160 212 224 265 280 371 424 530 560 742 848 1039 1060 1120 1484 1696 1855 2078 2120 2968 3710 4156 4240 5195 5936 7273 7420 8312 8480 10390 11872 14546 14840 16624 20780 29092 29680 33248 36365 41560 55067 58184 59360 72730 83120 110134 116368 145460 166240 220268 232736 275335 290920 385469 440536 550670 581840 770938 881072 1101340 1163680 1541876 1762144 1927345 2202680 3083752 3854690 4405360 6167504 7709380 8810720 12335008 15418760 30837520 61675040