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388022052 = 2231123127807
BaseRepresentation
bin10111001000001…
…011111100100100
31000001010120012010
4113020023330210
51243313201202
6102300354220
712421063425
oct2710137444
91001116163
10388022052
1118a034790
12a9b45970
1362509662
143976764c
15240e976c
hex1720bf24

388022052 has 48 divisors (see below), whose sum is σ = 1030643712. Its totient is φ = 112469280.

The previous prime is 388022027. The next prime is 388022069. The reversal of 388022052 is 250220883.

It is a super-2 number, since 2×3880220522 = 301122225676581408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60868 + ... + 66939.

It is an arithmetic number, because the mean of its divisors is an integer number (21471744).

Almost surely, 2388022052 is an apocalyptic number.

It is an amenable number.

388022052 is an abundant number, since it is smaller than the sum of its proper divisors (642621660).

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

388022052 is a wasteful number, since it uses less digits than its factorization.

388022052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127848 (or 127846 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 388022052 is about 19698.2753559798. The cubic root of 388022052 is about 729.3771205154.

The spelling of 388022052 in words is "three hundred eighty-eight million, twenty-two thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 23 33 44 46 66 69 92 132 138 253 276 506 759 1012 1518 3036 127807 255614 383421 511228 766842 1405877 1533684 2811754 2939561 4217631 5623508 5879122 8435262 8818683 11758244 16870524 17637366 32335171 35274732 64670342 97005513 129340684 194011026 388022052