Search a number
-
+
72936936 = 2335172207
BaseRepresentation
bin1000101100011…
…10110111101000
312002020120200000
410112032313220
5122132440221
611123143000
71543645062
oct426166750
9162216600
1072936936
1138197666
1220514a60
1312159567
149988732
15660ae26
hex458ede8

72936936 has 96 divisors (see below), whose sum is σ = 217002240. Its totient is φ = 22871808.

The previous prime is 72936923. The next prime is 72936949. The reversal of 72936936 is 63963927.

It is an interprime number because it is at equal distance from previous prime (72936923) and next prime (72936949).

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 72936891 and 72936900.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31945 + ... + 34151.

It is an arithmetic number, because the mean of its divisors is an integer number (2260440).

Almost surely, 272936936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72936936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108501120).

72936936 is an abundant number, since it is smaller than the sum of its proper divisors (144065304).

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

72936936 is a wasteful number, since it uses less digits than its factorization.

72936936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2229 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 72936936 is about 8540.3124064638. The cubic root of 72936936 is about 417.8135352633.

The spelling of 72936936 in words is "seventy-two million, nine hundred thirty-six thousand, nine hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 27 34 36 51 54 68 72 81 102 108 136 153 162 204 216 243 306 324 408 459 486 612 648 918 972 1224 1377 1836 1944 2207 2754 3672 4131 4414 5508 6621 8262 8828 11016 13242 16524 17656 19863 26484 33048 37519 39726 52968 59589 75038 79452 112557 119178 150076 158904 178767 225114 238356 300152 337671 357534 450228 476712 536301 675342 715068 900456 1013013 1072602 1350684 1430136 2026026 2145204 2701368 3039039 4052052 4290408 6078078 8104104 9117117 12156156 18234234 24312312 36468468 72936936