Search a number
-
+
78350323 = 478316381
BaseRepresentation
bin1001010101110…
…00011111110011
312110102121102211
410222320133303
5130024202243
611435152551
71640652412
oct452703763
9173377384
1078350323
1140254837
12222a5757
131330354c
14a597479
156d29d9d
hex4ab87f3

78350323 has 4 divisors (see below), whose sum is σ = 78371488. Its totient is φ = 78329160.

The previous prime is 78350317. The next prime is 78350329. The reversal of 78350323 is 32305387.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (78350317) and next prime (78350329).

It is a cyclic number.

It is not a de Polignac number, because 78350323 - 221 = 76253171 is a prime.

It is a super-2 number, since 2×783503232 = 12277546228408658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78350329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3408 + ... + 12973.

It is an arithmetic number, because the mean of its divisors is an integer number (19592872).

Almost surely, 278350323 is an apocalyptic number.

78350323 is a deficient number, since it is larger than the sum of its proper divisors (21165).

78350323 is a wasteful number, since it uses less digits than its factorization.

78350323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21164.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 78350323 is about 8851.5717813279. The cubic root of 78350323 is about 427.9045755615.

The spelling of 78350323 in words is "seventy-eight million, three hundred fifty thousand, three hundred twenty-three".

Divisors: 1 4783 16381 78350323