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38720701 = 263147227
BaseRepresentation
bin1001001110110…
…1010010111101
32200212012211001
42103231102331
534403030301
63501530301
7650056225
oct223552275
980765731
1038720701
111a947488
1210b73991
138039476
1451dd085
1535ecc01
hex24ed4bd

38720701 has 4 divisors (see below), whose sum is σ = 38868192. Its totient is φ = 38573212.

The previous prime is 38720699. The next prime is 38720723. The reversal of 38720701 is 10702783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38720701 - 21 = 38720699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38720701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38720741) 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, 73351 + ... + 73876.

It is an arithmetic number, because the mean of its divisors is an integer number (9717048).

Almost surely, 238720701 is an apocalyptic number.

It is an amenable number.

38720701 is a deficient number, since it is larger than the sum of its proper divisors (147491).

38720701 is a wasteful number, since it uses less digits than its factorization.

38720701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147490.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 38720701 is about 6222.5960016700. The cubic root of 38720701 is about 338.3096639242.

The spelling of 38720701 in words is "thirty-eight million, seven hundred twenty thousand, seven hundred one".

Divisors: 1 263 147227 38720701