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48761661 = 3131773547
BaseRepresentation
bin1011101000000…
…0101100111101
310101202100102110
42322000230331
544440333121
64501044233
71131316164
oct272005475
9111670373
1048761661
11255853a3
12143b6679
13a143870
1466943db
154432d76
hex2e80b3d

48761661 has 16 divisors (see below), whose sum is σ = 74136384. Its totient is φ = 28241664.

The previous prime is 48761659. The next prime is 48761663. The reversal of 48761661 is 16616784.

It is a happy number.

48761661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (48761659) and next prime (48761663).

It is not a de Polignac number, because 48761661 - 21 = 48761659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48761663) 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 15 ways as a sum of consecutive naturals, for example, 36111 + ... + 37436.

It is an arithmetic number, because the mean of its divisors is an integer number (4633524).

Almost surely, 248761661 is an apocalyptic number.

It is an amenable number.

48761661 is a deficient number, since it is larger than the sum of its proper divisors (25374723).

48761661 is a wasteful number, since it uses less digits than its factorization.

48761661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73580.

The product of its digits is 48384, while the sum is 39.

The square root of 48761661 is about 6982.9550335084. The cubic root of 48761661 is about 365.3363035401.

The spelling of 48761661 in words is "forty-eight million, seven hundred sixty-one thousand, six hundred sixty-one".

Divisors: 1 3 13 17 39 51 221 663 73547 220641 956111 1250299 2868333 3750897 16253887 48761661