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39994920 = 23325759269
BaseRepresentation
bin1001100010010…
…0011000101000
32210020221201100
42120210120220
540214314140
63545121400
7663644160
oct230443050
983227640
1039994920
1120637859
1211489260
138394444
1454515a0
1537a0530
hex2624628

39994920 has 192 divisors, whose sum is σ = 151632000. Its totient is φ = 8953344.

The previous prime is 39994919. The next prime is 39994949. The reversal of 39994920 is 2949993.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148546 + ... + 148814.

It is an arithmetic number, because the mean of its divisors is an integer number (789750).

Almost surely, 239994920 is an apocalyptic number.

39994920 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 39994920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75816000).

39994920 is an abundant number, since it is smaller than the sum of its proper divisors (111637080).

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

39994920 is a wasteful number, since it uses less digits than its factorization.

39994920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 39994920 is about 6324.1536983220. The cubic root of 39994920 is about 341.9807109261.

The spelling of 39994920 in words is "thirty-nine million, nine hundred ninety-four thousand, nine hundred twenty".