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3990052501 = 31563228617
BaseRepresentation
bin1110110111010011…
…0101111010010101
3101022001222200001021
43231310311322111
531132423140001
61455532401141
7200606613061
oct35564657225
911261880037
103990052501
11176830a556
129343161b1
134b784aa16
1429bcc4aa1
1518545cba1
hexedd35e95

3990052501 has 8 divisors (see below), whose sum is σ = 4126097664. Its totient is φ = 3854465760.

The previous prime is 3990052499. The next prime is 3990052523. The reversal of 3990052501 is 1052500993.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3990052501 - 21 = 3990052499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3990052301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96856 + ... + 131761.

It is an arithmetic number, because the mean of its divisors is an integer number (515762208).

Almost surely, 23990052501 is an apocalyptic number.

3990052501 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3990052501 is a deficient number, since it is larger than the sum of its proper divisors (136045163).

3990052501 is a wasteful number, since it uses less digits than its factorization.

3990052501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229211.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 3990052501 is about 63166.8623646925. The cubic root of 3990052501 is about 1586.0840704433.

The spelling of 3990052501 in words is "three billion, nine hundred ninety million, fifty-two thousand, five hundred one".

Divisors: 1 31 563 17453 228617 7087127 128711371 3990052501