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38897495 = 5713531613
BaseRepresentation
bin1001010001100…
…0011101010111
32201012012022222
42110120131113
534424204440
63505412555
7651423530
oct224303527
981165288
1038897495
111aa5829a
121103a15b
13809ba90
145247687
1536352b5
hex2518757

38897495 has 32 divisors (see below), whose sum is σ = 58568832. Its totient is φ = 24141312.

The previous prime is 38897491. The next prime is 38897519. The reversal of 38897495 is 59479883.

38897495 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38897495 - 22 = 38897491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38897491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23309 + ... + 24921.

It is an arithmetic number, because the mean of its divisors is an integer number (1830276).

Almost surely, 238897495 is an apocalyptic number.

38897495 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38897495 is a deficient number, since it is larger than the sum of its proper divisors (19671337).

38897495 is a wasteful number, since it uses less digits than its factorization.

38897495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691.

The product of its digits is 2177280, while the sum is 53.

The square root of 38897495 is about 6236.7856304350. The cubic root of 38897495 is about 338.8237758187.

The spelling of 38897495 in words is "thirty-eight million, eight hundred ninety-seven thousand, four hundred ninety-five".

Divisors: 1 5 7 13 35 53 65 91 265 371 455 689 1613 1855 3445 4823 8065 11291 20969 24115 56455 85489 104845 146783 427445 598423 733915 1111357 2992115 5556785 7779499 38897495