Search a number
-
+
78072348 = 22343151303
BaseRepresentation
bin1001010011101…
…00101000011100
312102220111010110
410221310220130
5124441303343
611425210020
71635414114
oct451645034
9172814113
1078072348
1140084a02
1222190910
1313236b73
14a524044
156cc2833
hex4a74a1c

78072348 has 24 divisors (see below), whose sum is σ = 186406528. Its totient is φ = 25418736.

The previous prime is 78072343. The next prime is 78072377. The reversal of 78072348 is 84327087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78072341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75136 + ... + 76167.

Almost surely, 278072348 is an apocalyptic number.

It is an amenable number.

78072348 is an abundant number, since it is smaller than the sum of its proper divisors (108334180).

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

78072348 is a wasteful number, since it uses less digits than its factorization.

78072348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151353 (or 151351 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 78072348 is about 8835.8558159354. The cubic root of 78072348 is about 427.3979291897.

The spelling of 78072348 in words is "seventy-eight million, seventy-two thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 151303 302606 453909 605212 907818 1815636 6506029 13012058 19518087 26024116 39036174 78072348