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99072533 = 782117239
BaseRepresentation
bin1011110011110…
…11101000010101
320220102101222002
411321323220111
5200330310113
613455245045
72312050130
oct571735025
9226371862
1099072533
1150a1872a
1229219785
13176aa601
14d22d217
158a6ec58
hex5e7ba15

99072533 has 8 divisors (see below), whose sum is σ = 113370240. Its totient is φ = 84810960.

The previous prime is 99072527. The next prime is 99072539. The reversal of 99072533 is 33527099.

It is an interprime number because it is at equal distance from previous prime (99072527) and next prime (99072539).

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

It is a cyclic number.

It is not a de Polignac number, because 99072533 - 26 = 99072469 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 (99072539) 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, 2873 + ... + 14366.

It is an arithmetic number, because the mean of its divisors is an integer number (14171280).

Almost surely, 299072533 is an apocalyptic number.

99072533 is the 5747-th octagonal number.

It is an amenable number.

99072533 is a deficient number, since it is larger than the sum of its proper divisors (14297707).

99072533 is a wasteful number, since it uses less digits than its factorization.

99072533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18067.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 99072533 is about 9953.5186240847. The cubic root of 99072533 is about 462.7194505684.

The spelling of 99072533 in words is "ninety-nine million, seventy-two thousand, five hundred thirty-three".

Divisors: 1 7 821 5747 17239 120673 14153219 99072533