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BaseRepresentation
bin1011111010110…
…11111100100100
320222011002022200
411331123330210
5201044210312
613531054500
72322624630
oct575337444
9228132280
1099991332
1151495a71
12295a1430
131793c88c
14d3cbdc0
158ba20dc
hex5f5bf24

99991332 has 72 divisors (see below), whose sum is σ = 289825536. Its totient is φ = 28473984.

The previous prime is 99991303. The next prime is 99991343. The reversal of 99991332 is 23319999.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116248 + ... + 117104.

Almost surely, 299991332 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 99991332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144912768).

99991332 is an abundant number, since it is smaller than the sum of its proper divisors (189834204).

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

99991332 is a wasteful number, since it uses less digits than its factorization.

99991332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337 (or 1332 counting only the distinct ones).

The product of its digits is 118098, while the sum is 45.

The square root of 99991332 is about 9999.5665906078. The cubic root of 99991332 is about 464.1454718764.

The spelling of 99991332 in words is "ninety-nine million, nine hundred ninety-one thousand, three hundred thirty-two".