Search a number
-
+
72875547 = 3210974287
BaseRepresentation
bin1000101011111…
…11111000011011
312002010110110100
410111333320123
5122124004142
611121550443
71543301103
oct425777033
9162113410
1072875547
1138155528
12204a5423
1312137634
149970203
1565e7b4c
hex457fe1b

72875547 has 12 divisors (see below), whose sum is σ = 106231840. Its totient is φ = 48137328.

The previous prime is 72875531. The next prime is 72875563. The reversal of 72875547 is 74557827.

It is an interprime number because it is at equal distance from previous prime (72875531) and next prime (72875563).

It is not a de Polignac number, because 72875547 - 24 = 72875531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72825547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36163 + ... + 38124.

Almost surely, 272875547 is an apocalyptic number.

72875547 is a deficient number, since it is larger than the sum of its proper divisors (33356293).

72875547 is a wasteful number, since it uses less digits than its factorization.

72875547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74402 (or 74399 counting only the distinct ones).

The product of its digits is 548800, while the sum is 45.

The square root of 72875547 is about 8536.7175776173. The cubic root of 72875547 is about 417.6962816652.

The spelling of 72875547 in words is "seventy-two million, eight hundred seventy-five thousand, five hundred forty-seven".

Divisors: 1 3 9 109 327 981 74287 222861 668583 8097283 24291849 72875547