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38461903 = 61630523
BaseRepresentation
bin1001001010111…
…0000111001111
32200101001210221
42102232013033
534321240103
63452212211
7644630554
oct222560717
980331727
1038461903
111a78aaa7
1210a6a067
137c7872c
145172a2b
15359b1bd
hex24ae1cf

38461903 has 4 divisors (see below), whose sum is σ = 39092488. Its totient is φ = 37831320.

The previous prime is 38461901. The next prime is 38461919. The reversal of 38461903 is 30916483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30916483 = 132378191.

It is a cyclic number.

It is not a de Polignac number, because 38461903 - 21 = 38461901 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 (38461901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315201 + ... + 315322.

It is an arithmetic number, because the mean of its divisors is an integer number (9773122).

Almost surely, 238461903 is an apocalyptic number.

38461903 is a deficient number, since it is larger than the sum of its proper divisors (630585).

38461903 is an equidigital number, since it uses as much as digits as its factorization.

38461903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630584.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 38461903 is about 6201.7661194211. The cubic root of 38461903 is about 337.5542570293.

The spelling of 38461903 in words is "thirty-eight million, four hundred sixty-one thousand, nine hundred three".

Divisors: 1 61 630523 38461903