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3925537980 = 22357213271379
BaseRepresentation
bin1110100111111010…
…1111010010111100
3101010120120222202120
43221332233102330
531014414203410
61445305522540
7166164344100
oct35176572274
911116528676
103925537980
111734955871
129167a3450
134a737cc50
142934cd900
1517e967570
hexe9faf4bc

3925537980 has 288 divisors, whose sum is σ = 13856855040. Its totient is φ = 823011840.

The previous prime is 3925537969. The next prime is 3925537981. The reversal of 3925537980 is 897355293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925537981) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10357431 + ... + 10357809.

It is an arithmetic number, because the mean of its divisors is an integer number (48114080).

Almost surely, 23925537980 is an apocalyptic number.

3925537980 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 3925537980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6928427520).

3925537980 is an abundant number, since it is smaller than the sum of its proper divisors (9931317060).

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

3925537980 is a wasteful number, since it uses less digits than its factorization.

3925537980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 51.

The square root of 3925537980 is about 62654.1138314157. The cubic root of 3925537980 is about 1577.4891996886.

The spelling of 3925537980 in words is "three billion, nine hundred twenty-five million, five hundred thirty-seven thousand, nine hundred eighty".