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87079741 = 717969497
BaseRepresentation
bin1010011000010…
…11101100111101
320001212002221121
411030023230331
5134243022431
612350230541
72105110540
oct514135475
9201762847
1087079741
1145177331
12251b5451
131506b998
14b7ca857
1579a1611
hex530bb3d

87079741 has 8 divisors (see below), whose sum is σ = 100077120. Its totient is φ = 74221728.

The previous prime is 87079739. The next prime is 87079753. The reversal of 87079741 is 14797078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87079741 - 21 = 87079739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87079711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33496 + ... + 36001.

It is an arithmetic number, because the mean of its divisors is an integer number (12509640).

Almost surely, 287079741 is an apocalyptic number.

It is an amenable number.

87079741 is a deficient number, since it is larger than the sum of its proper divisors (12997379).

87079741 is a wasteful number, since it uses less digits than its factorization.

87079741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69683.

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 87079741 is about 9331.6526403419. The cubic root of 87079741 is about 443.2400986719.

The spelling of 87079741 in words is "eighty-seven million, seventy-nine thousand, seven hundred forty-one".

Divisors: 1 7 179 1253 69497 486479 12439963 87079741