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30500404 = 22113159379
BaseRepresentation
bin111010001011…
…0011000110100
32010101120200121
41310112120310
530302003104
63005421324
7520151314
oct164263064
963346617
1030500404
1116242450
12a26a844
13641b99c
14409d444
152a27254
hex1d16634

30500404 has 48 divisors (see below), whose sum is σ = 61286400. Its totient is φ = 13154400.

The previous prime is 30500383. The next prime is 30500413. The reversal of 30500404 is 40400503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80287 + ... + 80665.

It is an arithmetic number, because the mean of its divisors is an integer number (1276800).

Almost surely, 230500404 is an apocalyptic number.

It is an amenable number.

30500404 is an abundant number, since it is smaller than the sum of its proper divisors (30785996).

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

30500404 is a wasteful number, since it uses less digits than its factorization.

30500404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30500404 is about 5522.7170849139. The cubic root of 30500404 is about 312.4413679867.

Adding to 30500404 its reverse (40400503), we get a palindrome (70900907).

Subtracting 30500404 from its reverse (40400503), we obtain a palindrome (9900099).

The spelling of 30500404 in words is "thirty million, five hundred thousand, four hundred four".

Divisors: 1 2 4 11 22 31 44 59 62 118 124 236 341 379 649 682 758 1298 1364 1516 1829 2596 3658 4169 7316 8338 11749 16676 20119 22361 23498 40238 44722 46996 80476 89444 129239 245971 258478 491942 516956 693191 983884 1386382 2772764 7625101 15250202 30500404