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34992720 = 24325753131
BaseRepresentation
bin1000010101111…
…1001001010000
32102211210222200
42011133021100
532424231340
63250003200
7603301410
oct205371120
972753880
1034992720
1118830604
12b876500
137332669
14490c640
153113330
hex215f250

34992720 has 240 divisors, whose sum is σ = 137884032. Its totient is φ = 7787520.

The previous prime is 34992719. The next prime is 34992739. The reversal of 34992720 is 2729943.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-3 number, since 3×349927203 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

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 47 ways as a sum of consecutive naturals, for example, 267055 + ... + 267185.

Almost surely, 234992720 is an apocalyptic number.

34992720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34992720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68942016).

34992720 is an abundant number, since it is smaller than the sum of its proper divisors (102891312).

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

34992720 is a wasteful number, since it uses less digits than its factorization.

34992720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 34992720 is about 5915.4644788047. The cubic root of 34992720 is about 327.0839500532.

The spelling of 34992720 in words is "thirty-four million, nine hundred ninety-two thousand, seven hundred twenty".