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87834768 = 2437733581
BaseRepresentation
bin1010011110001…
…00000010010000
320010021110122120
411033010002100
5134441203033
612414334240
72114404020
oct517040220
9203243576
1087834768
114564261a
12254ba380
1315274548
14b945a80
157aa01b3
hex53c4090

87834768 has 80 divisors (see below), whose sum is σ = 262947456. Its totient is φ = 24744960.

The previous prime is 87834757. The next prime is 87834793. The reversal of 87834768 is 86743878.

It is a super-2 number, since 2×878347682 = 15429892939227648, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 87834768.

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, 22738 + ... + 26318.

Almost surely, 287834768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87834768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131473728).

87834768 is an abundant number, since it is smaller than the sum of its proper divisors (175112688).

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

87834768 is a wasteful number, since it uses less digits than its factorization.

87834768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672 (or 3666 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The square root of 87834768 is about 9372.0204865333. The cubic root of 87834768 is about 444.5174553018.

The spelling of 87834768 in words is "eighty-seven million, eight hundred thirty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 73 84 112 146 168 219 292 336 438 511 584 876 1022 1168 1533 1752 2044 3066 3504 3581 4088 6132 7162 8176 10743 12264 14324 21486 24528 25067 28648 42972 50134 57296 75201 85944 100268 150402 171888 200536 261413 300804 401072 522826 601608 784239 1045652 1203216 1568478 1829891 2091304 3136956 3659782 4182608 5489673 6273912 7319564 10979346 12547824 14639128 21958692 29278256 43917384 87834768