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48926778 = 239978179
BaseRepresentation
bin1011101010100…
…1000000111010
310102001201220220
42322221000322
5100011124103
64504400510
71132604445
oct272510072
9112051826
1048926778
112568845a
1214476136
13a1a0a74
1466d865c
154466c53
hex2ea903a

48926778 has 16 divisors (see below), whose sum is σ = 97963680. Its totient is φ = 16290576.

The previous prime is 48926777. The next prime is 48926789. The reversal of 48926778 is 87762984.

It is a super-2 number, since 2×489267782 = 4787659210922568, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 48926778.

It is not an unprimeable number, because it can be changed into a prime (48926777) 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, 1893 + ... + 10071.

It is an arithmetic number, because the mean of its divisors is an integer number (6122730).

Almost surely, 248926778 is an apocalyptic number.

48926778 is an abundant number, since it is smaller than the sum of its proper divisors (49036902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48926778 is a wasteful number, since it uses less digits than its factorization.

48926778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181.

The product of its digits is 1354752, while the sum is 51.

The square root of 48926778 is about 6994.7679017963. The cubic root of 48926778 is about 365.7482068814.

The spelling of 48926778 in words is "forty-eight million, nine hundred twenty-six thousand, seven hundred seventy-eight".

Divisors: 1 2 3 6 997 1994 2991 5982 8179 16358 24537 49074 8154463 16308926 24463389 48926778