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3031803972 = 22332359137151
BaseRepresentation
bin1011010010110101…
…1010100001000100
321211021212121012000
42310231122201010
522202120211342
61220502025300
7135062623431
oct26455324104
97737777160
103031803972
11131641321a
12707418230
1339416b662
1420a924b88
1512b27744c
hexb4b5a844

3031803972 has 192 divisors, whose sum is σ = 8457523200. Its totient is φ = 937094400.

The previous prime is 3031803947. The next prime is 3031803977. The reversal of 3031803972 is 2793081303.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (3031803977) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20078097 + ... + 20078247.

It is an arithmetic number, because the mean of its divisors is an integer number (44049600).

Almost surely, 23031803972 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 3031803972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4228761600).

3031803972 is an abundant number, since it is smaller than the sum of its proper divisors (5425719228).

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

3031803972 is a wasteful number, since it uses less digits than its factorization.

3031803972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 375 counting only the distinct ones).

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

The square root of 3031803972 is about 55061.8195485765. The cubic root of 3031803972 is about 1447.3282504483.

The spelling of 3031803972 in words is "three billion, thirty-one million, eight hundred three thousand, nine hundred seventy-two".