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48798021 = 316266007
BaseRepresentation
bin1011101000100…
…1100101000101
310101211012022010
42322021211011
544443014041
64501524433
71131530166
oct272114505
9111735263
1048798021
11255aa748
1214413719
13a15728c
1466a376d
15443da16
hex2e89945

48798021 has 4 divisors (see below), whose sum is σ = 65064032. Its totient is φ = 32532012.

The previous prime is 48797993. The next prime is 48798047. The reversal of 48798021 is 12089784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 48798021 - 25 = 48797989 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 (48798121) 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, 8133001 + ... + 8133006.

It is an arithmetic number, because the mean of its divisors is an integer number (16266008).

Almost surely, 248798021 is an apocalyptic number.

It is an amenable number.

48798021 is a deficient number, since it is larger than the sum of its proper divisors (16266011).

48798021 is a wasteful number, since it uses less digits than its factorization.

48798021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16266010.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 48798021 is about 6985.5580306802. The cubic root of 48798021 is about 365.4270874836.

The spelling of 48798021 in words is "forty-eight million, seven hundred ninety-eight thousand, twenty-one".

Divisors: 1 3 16266007 48798021