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30401352 = 2333971451
BaseRepresentation
bin111001111111…
…0001101001000
32010012112211000
41303332031020
530240320402
63003335000
7516256452
oct163761510
963175730
1030401352
1116184a93
12a221460
1363b5887
1440752d2
152a07c1c
hex1cfe348

30401352 has 64 divisors (see below), whose sum is σ = 85377600. Its totient is φ = 10022400.

The previous prime is 30401351. The next prime is 30401369. The reversal of 30401352 is 25310403.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30401351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20227 + ... + 21677.

It is an arithmetic number, because the mean of its divisors is an integer number (1334025).

Almost surely, 230401352 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 30401352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42688800).

30401352 is an abundant number, since it is smaller than the sum of its proper divisors (54976248).

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

30401352 is a wasteful number, since it uses less digits than its factorization.

30401352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1553 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30401352 is about 5513.7421049592. The cubic root of 30401352 is about 312.1027767912.

Adding to 30401352 its reverse (25310403), we get a palindrome (55711755).

The spelling of 30401352 in words is "thirty million, four hundred one thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 97 108 194 216 291 388 582 776 873 1164 1451 1746 2328 2619 2902 3492 4353 5238 5804 6984 8706 10476 11608 13059 17412 20952 26118 34824 39177 52236 78354 104472 140747 156708 281494 313416 422241 562988 844482 1125976 1266723 1688964 2533446 3377928 3800169 5066892 7600338 10133784 15200676 30401352