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3748904540 = 225187445227
BaseRepresentation
bin1101111101110011…
…1011111001011100
3100200021020002020022
43133130323321130
530134204421130
61420000011312
7161621106563
oct33734737134
910607202208
103748904540
111654182517
12887600b38
134798b7514
14277c70bda
1516e1c67e5
hexdf73be5c

3748904540 has 12 divisors (see below), whose sum is σ = 7872699576. Its totient is φ = 1499561808.

The previous prime is 3748904503. The next prime is 3748904543. The reversal of 3748904540 is 454098473.

It is a super-2 number, since 2×37489045402 = 28108570500065223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3748904491 and 3748904500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3748904543) 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, 93722594 + ... + 93722633.

It is an arithmetic number, because the mean of its divisors is an integer number (656058298).

Almost surely, 23748904540 is an apocalyptic number.

It is an amenable number.

3748904540 is an abundant number, since it is smaller than the sum of its proper divisors (4123795036).

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

3748904540 is a wasteful number, since it uses less digits than its factorization.

3748904540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187445236 (or 187445234 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 3748904540 is about 61228.2985228236. The cubic root of 3748904540 is about 1553.4649560693.

The spelling of 3748904540 in words is "three billion, seven hundred forty-eight million, nine hundred four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 187445227 374890454 749780908 937226135 1874452270 3748904540