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78535230 = 2357136871
BaseRepresentation
bin1001010111001…
…01101000111110
312110210000002020
410223211220332
5130101111410
611443141010
71642352454
oct453455076
9173700066
1078535230
1140370754
1222374766
1313369767
14a6049d4
156d64a70
hex4ae5a3e

78535230 has 32 divisors (see below), whose sum is σ = 191144448. Its totient is φ = 20647200.

The previous prime is 78535229. The next prime is 78535267. The reversal of 78535230 is 3253587.

It is a junction number, because it is equal to n+sod(n) for n = 78535191 and 78535200.

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, 16306 + ... + 20565.

It is an arithmetic number, because the mean of its divisors is an integer number (5973264).

Almost surely, 278535230 is an apocalyptic number.

78535230 is an abundant number, since it is smaller than the sum of its proper divisors (112609218).

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

78535230 is a wasteful number, since it uses less digits than its factorization.

78535230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36952.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 78535230 is about 8862.0104942389. The cubic root of 78535230 is about 428.2409298000.

The spelling of 78535230 in words is "seventy-eight million, five hundred thirty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 36871 73742 110613 184355 221226 368710 553065 1106130 2617841 5235682 7853523 13089205 15707046 26178410 39267615 78535230