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4945920 = 21135723
BaseRepresentation
bin10010110111100000000000
3100022021112020
4102313200000
52231232140
6254001440
760016410
oct22674000
910267466
104945920
112878a41
1217a6280
1310422a5
1492a640
1567a6d0
hex4b7800

4945920 has 192 divisors, whose sum is σ = 18869760. Its totient is φ = 1081344.

The previous prime is 4945879. The next prime is 4945937. The reversal of 4945920 is 295494.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215029 + ... + 215051.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

Almost surely, 24945920 is an apocalyptic number.

4945920 is a gapful number since it is divisible by the number (40) 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 4945920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9434880).

4945920 is an abundant number, since it is smaller than the sum of its proper divisors (13923840).

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

4945920 is a wasteful number, since it uses less digits than its factorization.

4945920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 4945920 is about 2223.9424452984. The cubic root of 4945920 is about 170.3788551867.

The spelling of 4945920 in words is "four million, nine hundred forty-five thousand, nine hundred twenty".