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77069230 = 2576118049
BaseRepresentation
bin1001001011111…
…11101110101110
312101000112002221
410211333232232
5124212203410
611351505554
71624035430
oct445775656
9171015087
1077069230
113a55a287
12219882ba
1312c753c4
14a342650
156b754da
hex497fbae

77069230 has 32 divisors (see below), whose sum is σ = 161150400. Its totient is φ = 25989120.

The previous prime is 77069219. The next prime is 77069231. The reversal of 77069230 is 3296077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77069231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4755 + ... + 13294.

It is an arithmetic number, because the mean of its divisors is an integer number (5035950).

Almost surely, 277069230 is an apocalyptic number.

77069230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77069230 is an abundant number, since it is smaller than the sum of its proper divisors (84081170).

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

77069230 is a wasteful number, since it uses less digits than its factorization.

77069230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18124.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 77069230 is about 8778.9082464735. The cubic root of 77069230 is about 425.5595490261.

The spelling of 77069230 in words is "seventy-seven million, sixty-nine thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 61 70 122 305 427 610 854 2135 4270 18049 36098 90245 126343 180490 252686 631715 1100989 1263430 2201978 5504945 7706923 11009890 15413846 38534615 77069230