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234028788 = 223710932549
BaseRepresentation
bin11011111001011…
…11111011110100
3121022100220010220
431330233323310
5434402410123
635120014340
75541132450
oct1574577364
9538326126
10234028788
11110115324
12664613b0
133963cc96
142311d660
151582bce3
hexdf2fef4

234028788 has 48 divisors (see below), whose sum is σ = 624892800. Its totient is φ = 66777984.

The previous prime is 234028771. The next prime is 234028807. The reversal of 234028788 is 887820432.

It is a super-2 number, since 2×2340287882 = 109538947225497888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 90538 + ... + 93086.

It is an arithmetic number, because the mean of its divisors is an integer number (13018600).

Almost surely, 2234028788 is an apocalyptic number.

234028788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

234028788 is an abundant number, since it is smaller than the sum of its proper divisors (390864012).

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

234028788 is a wasteful number, since it uses less digits than its factorization.

234028788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656 (or 3654 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 234028788 is about 15297.9994770558. Note that the first 3 decimals coincide. The cubic root of 234028788 is about 616.2492841901.

The spelling of 234028788 in words is "two hundred thirty-four million, twenty-eight thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1093 2186 2549 3279 4372 5098 6558 7647 7651 10196 13116 15294 15302 17843 22953 30588 30604 35686 45906 53529 71372 91812 107058 214116 2786057 5572114 8358171 11144228 16716342 19502399 33432684 39004798 58507197 78009596 117014394 234028788