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48911140 = 2252445557
BaseRepresentation
bin1011101010010…
…1001100100100
310102000221110201
42322211030210
5100010124030
64504200244
71132511035
oct272451444
9112027421
1048911140
1125677733
1214469084
13a196905
1466d2a8c
1544622ca
hex2ea5324

48911140 has 12 divisors (see below), whose sum is σ = 102713436. Its totient is φ = 19564448.

The previous prime is 48911113. The next prime is 48911143. The reversal of 48911140 is 4111984.

It can be written as a sum of positive squares in 2 ways, for example, as 36675136 + 12236004 = 6056^2 + 3498^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48911099 and 48911108.

It is not an unprimeable number, because it can be changed into a prime (48911143) 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, 1222759 + ... + 1222798.

It is an arithmetic number, because the mean of its divisors is an integer number (8559453).

Almost surely, 248911140 is an apocalyptic number.

It is an amenable number.

48911140 is an abundant number, since it is smaller than the sum of its proper divisors (53802296).

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

48911140 is a wasteful number, since it uses less digits than its factorization.

48911140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445566 (or 2445564 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 48911140 is about 6993.6499769434. The cubic root of 48911140 is about 365.7092358573.

The spelling of 48911140 in words is "forty-eight million, nine hundred eleven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2445557 4891114 9782228 12227785 24455570 48911140