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78673045 = 5111430419
BaseRepresentation
bin1001011000001…
…11010010010101
312111001000010111
410230013102111
5130120014140
611450123021
71643465323
oct454072225
9174030114
1078673045
1140455250
1222420471
13133b73c9
14a63cd13
156d907ea
hex4b07495

78673045 has 8 divisors (see below), whose sum is σ = 102990240. Its totient is φ = 57216720.

The previous prime is 78673003. The next prime is 78673051. The reversal of 78673045 is 54037687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78673045 - 217 = 78541973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78672989 and 78673007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715155 + ... + 715264.

It is an arithmetic number, because the mean of its divisors is an integer number (12873780).

Almost surely, 278673045 is an apocalyptic number.

It is an amenable number.

78673045 is a deficient number, since it is larger than the sum of its proper divisors (24317195).

78673045 is a wasteful number, since it uses less digits than its factorization.

78673045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430435.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 78673045 is about 8869.7826918138. The cubic root of 78673045 is about 428.4912783183.

The spelling of 78673045 in words is "seventy-eight million, six hundred seventy-three thousand, forty-five".

Divisors: 1 5 11 55 1430419 7152095 15734609 78673045