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30744704 = 271771199
BaseRepresentation
bin111010101001…
…0000010000000
32010211222210202
41311102002000
530332312304
63014544332
7522216464
oct165220200
963758722
1030744704
1116399a51
12a3680a8
1364a5c43
1441244a4
152a7481e
hex1d52080

30744704 has 64 divisors (see below), whose sum is σ = 66096000. Its totient is φ = 14192640.

The previous prime is 30744689. The next prime is 30744713. The reversal of 30744704 is 40744703.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154397 + ... + 154595.

It is an arithmetic number, because the mean of its divisors is an integer number (1032750).

Almost surely, 230744704 is an apocalyptic number.

30744704 is a gapful number since it is divisible by the number (34) 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 30744704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33048000).

30744704 is an abundant number, since it is smaller than the sum of its proper divisors (35351296).

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

30744704 is a wasteful number, since it uses less digits than its factorization.

30744704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 30744704 is about 5544.7907084037. The cubic root of 30744704 is about 313.2733409614.

Subtracting 30744704 from its reverse (40744703), we obtain a palindrome (9999999).

The spelling of 30744704 in words is "thirty million, seven hundred forty-four thousand, seven hundred four".

Divisors: 1 2 4 8 16 17 32 34 64 68 71 128 136 142 199 272 284 398 544 568 796 1088 1136 1207 1592 2176 2272 2414 3184 3383 4544 4828 6368 6766 9088 9656 12736 13532 14129 19312 25472 27064 28258 38624 54128 56516 77248 108256 113032 154496 216512 226064 240193 433024 452128 480386 904256 960772 1808512 1921544 3843088 7686176 15372352 30744704