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48720340 = 2252436017
BaseRepresentation
bin1011100111011…
…0100111010100
310101200020202001
42321312213110
544433022330
64500125044
71131054544
oct271664724
9111606661
1048720340
1125557349
1214396784
13a12ab06
146683324
1544259ca
hex2e769d4

48720340 has 12 divisors (see below), whose sum is σ = 102312756. Its totient is φ = 19488128.

The previous prime is 48720307. The next prime is 48720367. The reversal of 48720340 is 4302784.

It can be written as a sum of positive squares in 2 ways, for example, as 15335056 + 33385284 = 3916^2 + 5778^2 .

It is a junction number, because it is equal to n+sod(n) for n = 48720299 and 48720308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217989 + ... + 1218028.

It is an arithmetic number, because the mean of its divisors is an integer number (8526063).

Almost surely, 248720340 is an apocalyptic number.

It is an amenable number.

48720340 is an abundant number, since it is smaller than the sum of its proper divisors (53592416).

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

48720340 is a wasteful number, since it uses less digits than its factorization.

48720340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436026 (or 2436024 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 48720340 is about 6979.9957020044. The cubic root of 48720340 is about 365.2330781285.

The spelling of 48720340 in words is "forty-eight million, seven hundred twenty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 2436017 4872034 9744068 12180085 24360170 48720340