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552023388 = 2232717128857
BaseRepresentation
bin100000111001110…
…011010101011100
31102110201200201200
4200321303111130
52112304222023
6130435435500
716452056430
oct4071632534
91373650650
10552023388
1126366a384
12134a55b90
138a49b477
14534589c0
15336e2743
hex20e7355c

552023388 has 72 divisors (see below), whose sum is σ = 1688555232. Its totient is φ = 148442112.

The previous prime is 552023377. The next prime is 552023447. The reversal of 552023388 is 883320255.

552023388 is a `hidden beast` number, since 552 + 0 + 23 + 3 + 88 = 666.

552023388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60145 + ... + 68712.

It is an arithmetic number, because the mean of its divisors is an integer number (23452156).

Almost surely, 2552023388 is an apocalyptic number.

It is an amenable number.

552023388 is an abundant number, since it is smaller than the sum of its proper divisors (1136531844).

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

552023388 is a wasteful number, since it uses less digits than its factorization.

552023388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128891 (or 128886 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 552023388 is about 23495.1779733630. The cubic root of 552023388 is about 820.3247712145.

The spelling of 552023388 in words is "five hundred fifty-two million, twenty-three thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 28 34 36 42 51 63 68 84 102 119 126 153 204 238 252 306 357 476 612 714 1071 1428 2142 4284 128857 257714 386571 515428 773142 901999 1159713 1546284 1803998 2190569 2319426 2705997 3607996 4381138 4638852 5411994 6571707 8117991 8762276 10823988 13143414 15333983 16235982 19715121 26286828 30667966 32471964 39430242 46001949 61335932 78860484 92003898 138005847 184007796 276011694 552023388