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3938872413 = 37187565353
BaseRepresentation
bin1110101011000110…
…0110110001011101
3101011111200110011110
43222301212301131
531031322404123
61450503412233
7166415602020
oct35261466135
911144613143
103938872413
111741433163
1291b154079
134aa06b448
142951a11b7
15180bed493
hexeac66c5d

3938872413 has 8 divisors (see below), whose sum is σ = 6002091328. Its totient is φ = 2250784224.

The previous prime is 3938872411. The next prime is 3938872417. The reversal of 3938872413 is 3142788393.

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

It is not a de Polignac number, because 3938872413 - 21 = 3938872411 is a prime.

It is a super-3 number, since 3×39388724133 (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938872411) 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, 93782656 + ... + 93782697.

It is an arithmetic number, because the mean of its divisors is an integer number (750261416).

Almost surely, 23938872413 is an apocalyptic number.

It is an amenable number.

3938872413 is a deficient number, since it is larger than the sum of its proper divisors (2063218915).

3938872413 is a wasteful number, since it uses less digits than its factorization.

3938872413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187565363.

The product of its digits is 870912, while the sum is 48.

The square root of 3938872413 is about 62760.4366858613. The cubic root of 3938872413 is about 1579.2733416801.

The spelling of 3938872413 in words is "three billion, nine hundred thirty-eight million, eight hundred seventy-two thousand, four hundred thirteen".

Divisors: 1 3 7 21 187565353 562696059 1312957471 3938872413