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38124740 = 2251906237
BaseRepresentation
bin1001000101101…
…1110011000100
32122201221022102
42101123303010
534224442430
63441051232
7642024563
oct221336304
978657272
1038124740
111a57a755
1210926b18
137b8b124
1450c5bda
153531345
hex245bcc4

38124740 has 12 divisors (see below), whose sum is σ = 80061996. Its totient is φ = 15249888.

The previous prime is 38124739. The next prime is 38124767. The reversal of 38124740 is 4742183.

It can be written as a sum of positive squares in 2 ways, for example, as 23116864 + 15007876 = 4808^2 + 3874^2 .

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, 953099 + ... + 953138.

It is an arithmetic number, because the mean of its divisors is an integer number (6671833).

Almost surely, 238124740 is an apocalyptic number.

It is an amenable number.

38124740 is an abundant number, since it is smaller than the sum of its proper divisors (41937256).

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

38124740 is a wasteful number, since it uses less digits than its factorization.

38124740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906246 (or 1906244 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 38124740 is about 6174.5234633938. The cubic root of 38124740 is about 336.5650097721.

The spelling of 38124740 in words is "thirty-eight million, one hundred twenty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1906237 3812474 7624948 9531185 19062370 38124740