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48666820 = 2252433341
BaseRepresentation
bin1011100110100…
…1100011000100
310101120112022211
42321221203010
544424314240
64455033204
71130442526
oct271514304
9111515284
1048666820
1125520114
121436b804
13a10c647
14666ba16
154414bea
hex2e698c4

48666820 has 12 divisors (see below), whose sum is σ = 102200364. Its totient is φ = 19466720.

The previous prime is 48666797. The next prime is 48666823. The reversal of 48666820 is 2866684.

It can be written as a sum of positive squares in 2 ways, for example, as 21958596 + 26708224 = 4686^2 + 5168^2 .

It is not an unprimeable number, because it can be changed into a prime (48666823) 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, 1216651 + ... + 1216690.

It is an arithmetic number, because the mean of its divisors is an integer number (8516697).

Almost surely, 248666820 is an apocalyptic number.

It is an amenable number.

48666820 is an abundant number, since it is smaller than the sum of its proper divisors (53533544).

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

48666820 is a wasteful number, since it uses less digits than its factorization.

48666820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433350 (or 2433348 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 48666820 is about 6976.1608353019. The cubic root of 48666820 is about 365.0992911833.

The spelling of 48666820 in words is "forty-eight million, six hundred sixty-six thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 2433341 4866682 9733364 12166705 24333410 48666820