Search a number
-
+
72954648 = 23331325981
BaseRepresentation
bin1000101100100…
…11001100011000
312002021110222000
410112103030120
5122134022043
611123401000
71544050524
oct426231430
9162243860
1072954648
11381a99a8
1220523160
1312164640
149990d84
1566112d3
hex4593318

72954648 has 64 divisors (see below), whose sum is σ = 218248800. Its totient is φ = 22446720.

The previous prime is 72954647. The next prime is 72954649. The reversal of 72954648 is 84645927.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72954647) and next prime (72954649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72954641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10183 + ... + 15798.

Almost surely, 272954648 is an apocalyptic number.

72954648 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

72954648 is an abundant number, since it is smaller than the sum of its proper divisors (145294152).

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

72954648 is a wasteful number, since it uses less digits than its factorization.

72954648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26009 (or 25999 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 72954648 is about 8541.3493079255. The cubic root of 72954648 is about 417.8473531284.

The spelling of 72954648 in words is "seventy-two million, nine hundred fifty-four thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 468 702 936 1404 2808 25981 51962 77943 103924 155886 207848 233829 311772 337753 467658 623544 675506 701487 935316 1013259 1351012 1402974 1870632 2026518 2702024 2805948 3039777 4053036 5611896 6079554 8106072 9119331 12159108 18238662 24318216 36477324 72954648