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30341040 = 2435126421
BaseRepresentation
bin111001110111…
…1011110110000
32010002111002020
41303233132300
530231403130
63002151440
7515615562
oct163573660
963074066
1030341040
1116143744
12a1b2580
1363942a2
14405b332
1529e4e10
hex1cef7b0

30341040 has 40 divisors (see below), whose sum is σ = 94057968. Its totient is φ = 8090880.

The previous prime is 30341011. The next prime is 30341053. The reversal of 30341040 is 4014303.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×303410403 (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 62971 + ... + 63450.

Almost surely, 230341040 is an apocalyptic number.

30341040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30341040 is an abundant number, since it is smaller than the sum of its proper divisors (63716928).

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

30341040 is a wasteful number, since it uses less digits than its factorization.

30341040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126437 (or 126431 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30341040 is about 5508.2701458806. The cubic root of 30341040 is about 311.8962508428.

Adding to 30341040 its reverse (4014303), we get a palindrome (34355343).

The spelling of 30341040 in words is "thirty million, three hundred forty-one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 126421 252842 379263 505684 632105 758526 1011368 1264210 1517052 1896315 2022736 2528420 3034104 3792630 5056840 6068208 7585260 10113680 15170520 30341040