Search a number
-
+
30607136 = 2571071277
BaseRepresentation
bin111010011000…
…0011100100000
32010121000002122
41310300130200
530313412021
63012003412
7521104430
oct164603440
963530078
1030607136
111630565a
12a300568
136458441
1440ca2c0
152a48bab
hex1d30720

30607136 has 48 divisors (see below), whose sum is σ = 69564096. Its totient is φ = 12984576.

The previous prime is 30607117. The next prime is 30607139. The reversal of 30607136 is 63170603.

It is not an unprimeable number, because it can be changed into a prime (30607139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23330 + ... + 24606.

It is an arithmetic number, because the mean of its divisors is an integer number (1449252).

Almost surely, 230607136 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 30607136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34782048).

30607136 is an abundant number, since it is smaller than the sum of its proper divisors (38956960).

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

30607136 is a wasteful number, since it uses less digits than its factorization.

30607136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 30607136 is about 5532.3716433371. The cubic root of 30607136 is about 312.8053923364.

Adding to 30607136 its reverse (63170603), we get a palindrome (93777739).

The spelling of 30607136 in words is "thirty million, six hundred seven thousand, one hundred thirty-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 107 112 214 224 428 749 856 1277 1498 1712 2554 2996 3424 5108 5992 8939 10216 11984 17878 20432 23968 35756 40864 71512 136639 143024 273278 286048 546556 956473 1093112 1912946 2186224 3825892 4372448 7651784 15303568 30607136