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38970307 = 172292371
BaseRepresentation
bin1001010010101…
…0001111000011
32201022220012201
42110222033003
534434022212
63511134031
7652146025
oct224521703
981286181
1038970307
111aaa7a72
1211074317
1380c5c6c
145266015
15364bb57
hex252a3c3

38970307 has 4 divisors (see below), whose sum is σ = 41262696. Its totient is φ = 36677920.

The previous prime is 38970293. The next prime is 38970353. The reversal of 38970307 is 70307983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70307983 = 233301751.

It is a cyclic number.

It is not a de Polignac number, because 38970307 - 219 = 38446019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38976307) 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, 1146169 + ... + 1146202.

It is an arithmetic number, because the mean of its divisors is an integer number (10315674).

Almost surely, 238970307 is an apocalyptic number.

38970307 is a deficient number, since it is larger than the sum of its proper divisors (2292389).

38970307 is a wasteful number, since it uses less digits than its factorization.

38970307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292388.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 38970307 is about 6242.6202030878. The cubic root of 38970307 is about 339.0350581414.

The spelling of 38970307 in words is "thirty-eight million, nine hundred seventy thousand, three hundred seven".

Divisors: 1 17 2292371 38970307