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1390037901 = 3766192281
BaseRepresentation
bin101001011011010…
…0100101110001101
310120212121020112020
41102312210232031
510321322203101
6345533200353
746306061430
oct12266445615
93525536466
101390037901
1165370505a
123296300b9
13191ca1245
14d287b817
1582078136
hex52da4b8d

1390037901 has 8 divisors (see below), whose sum is σ = 2118153024. Its totient is φ = 794307360.

The previous prime is 1390037893. The next prime is 1390037903. The reversal of 1390037901 is 1097300931.

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

It is not a de Polignac number, because 1390037901 - 23 = 1390037893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390037903) 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, 33096120 + ... + 33096161.

It is an arithmetic number, because the mean of its divisors is an integer number (264769128).

Almost surely, 21390037901 is an apocalyptic number.

It is an amenable number.

1390037901 is a deficient number, since it is larger than the sum of its proper divisors (728115123).

1390037901 is an equidigital number, since it uses as much as digits as its factorization.

1390037901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66192291.

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 1390037901 is about 37283.2120531480. The cubic root of 1390037901 is about 1116.0291732909.

The spelling of 1390037901 in words is "one billion, three hundred ninety million, thirty-seven thousand, nine hundred one".

Divisors: 1 3 7 21 66192281 198576843 463345967 1390037901