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48867639 = 31719293747
BaseRepresentation
bin1011101001101…
…0100100110111
310101221201210120
42322122210313
5100002231024
64503223023
71132240152
oct272324467
9111851716
1048867639
1125647a87
1214447a73
13a17cb82
1466c0c99
154454479
hex2e9a937

48867639 has 64 divisors (see below), whose sum is σ = 78796800. Its totient is φ = 26707968.

The previous prime is 48867607. The next prime is 48867653. The reversal of 48867639 is 93676884.

It is not a de Polignac number, because 48867639 - 25 = 48867607 is a prime.

It is a super-2 number, since 2×488676392 = 4776092282868642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 48867591 and 48867600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48867659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1039714 + ... + 1039760.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 248867639 is an apocalyptic number.

48867639 is a deficient number, since it is larger than the sum of its proper divisors (29929161).

48867639 is a wasteful number, since it uses less digits than its factorization.

48867639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152.

The product of its digits is 1741824, while the sum is 51.

The square root of 48867639 is about 6990.5392495858. The cubic root of 48867639 is about 365.6007845165.

The spelling of 48867639 in words is "forty-eight million, eight hundred sixty-seven thousand, six hundred thirty-nine".

Divisors: 1 3 17 19 29 37 47 51 57 87 111 141 323 493 551 629 703 799 893 969 1073 1363 1479 1653 1739 1887 2109 2397 2679 3219 4089 5217 9367 11951 15181 18241 20387 23171 25897 28101 29563 33041 35853 45543 50431 54723 61161 69513 77691 88689 99123 151293 346579 440249 561697 857327 958189 1039737 1320747 1685091 2571981 2874567 16289213 48867639