Search a number
BaseRepresentation
bin1000101000111…
…11010001101010
312001101100122220
410110133101222
5122023323400
611105254510
71540032342
oct424372152
9161340586
1072479850
1137a05203
1220334436
13120294b1
1498a9d22
15656a7a0
hex451f46a

72479850 has 48 divisors (see below), whose sum is σ = 181113408. Its totient is φ = 19181440.

The previous prime is 72479839. The next prime is 72479861. The reversal of 72479850 is 5897427.

It is an interprime number because it is at equal distance from previous prime (72479839) and next prime (72479861).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18787 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (3773196).

Almost surely, 272479850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72479850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90556704).

72479850 is an abundant number, since it is smaller than the sum of its proper divisors (108633558).

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

72479850 is a wasteful number, since it uses less digits than its factorization.

72479850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 72479850 is about 8513.5098519941. The cubic root of 72479850 is about 416.9389118572.

The spelling of 72479850 in words is "seventy-two million, four hundred seventy-nine thousand, eight hundred fifty".