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381225592 = 231110740487
BaseRepresentation
bin10110101110010…
…000101001111000
3222120100021012101
4112232100221320
51240043204332
6101454553144
712306235606
oct2656205170
9876307171
10381225592
11186212480
12a78087b4
1360c99c97
14388b8876
1523705ae7
hex16b90a78

381225592 has 32 divisors (see below), whose sum is σ = 787086720. Its totient is φ = 171660640.

The previous prime is 381225587. The next prime is 381225701. The reversal of 381225592 is 295522183.

381225592 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10828 + ... + 29659.

It is an arithmetic number, because the mean of its divisors is an integer number (24596460).

Almost surely, 2381225592 is an apocalyptic number.

It is an amenable number.

381225592 is an abundant number, since it is smaller than the sum of its proper divisors (405861128).

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

381225592 is a wasteful number, since it uses less digits than its factorization.

381225592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40611 (or 40607 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 381225592 is about 19524.9991549296. Note that the first 3 decimals coincide. The cubic root of 381225592 is about 725.0935064493.

The spelling of 381225592 in words is "three hundred eighty-one million, two hundred twenty-five thousand, five hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 107 214 428 856 1177 2354 4708 9416 40487 80974 161948 323896 445357 890714 1781428 3562856 4332109 8664218 17328436 34656872 47653199 95306398 190612796 381225592