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72027072 = 2632139619
BaseRepresentation
bin1000100101100…
…00101111000000
312000112100120100
410102300233000
5121414331242
611051442400
71533135315
oct422605700
9160470510
1072027072
1137726007
1220156400
1311bcb390
1497ccd0c
1564cb54c
hex44b0bc0

72027072 has 84 divisors (see below), whose sum is σ = 222356680. Its totient is φ = 22159872.

The previous prime is 72027071. The next prime is 72027073. The reversal of 72027072 is 27072027.

It is an interprime number because it is at equal distance from previous prime (72027071) and next prime (72027073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72027071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2679 + ... + 12297.

Almost surely, 272027072 is an apocalyptic number.

72027072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72027072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111178340).

72027072 is an abundant number, since it is smaller than the sum of its proper divisors (150329608).

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

72027072 is a wasteful number, since it uses less digits than its factorization.

72027072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9650 (or 9637 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 72027072 is about 8486.8764572132. The cubic root of 72027072 is about 416.0688988446.

Adding to 72027072 its reverse (27072027), we get a palindrome (99099099).

The spelling of 72027072 in words is "seventy-two million, twenty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 64 72 78 96 104 117 144 156 192 208 234 288 312 416 468 576 624 832 936 1248 1872 2496 3744 7488 9619 19238 28857 38476 57714 76952 86571 115428 125047 153904 173142 230856 250094 307808 346284 375141 461712 500188 615616 692568 750282 923424 1000376 1125423 1385136 1500564 1846848 2000752 2250846 2770272 3001128 4001504 4501692 5540544 6002256 8003008 9003384 12004512 18006768 24009024 36013536 72027072