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30104220 = 22351792803
BaseRepresentation
bin111001011010…
…1101010011100
32002122110020010
41302311222130
530201313340
62553123220
7513611256
oct162655234
962573203
1030104220
1115aa1823
12a0b9510
136310563
143dd8cd6
152999b80
hex1cb5a9c

30104220 has 48 divisors (see below), whose sum is σ = 84792960. Its totient is φ = 7980096.

The previous prime is 30104197. The next prime is 30104231. The reversal of 30104220 is 2240103.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30104196 and 30104205.

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, 9339 + ... + 12141.

It is an arithmetic number, because the mean of its divisors is an integer number (1766520).

Almost surely, 230104220 is an apocalyptic number.

30104220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30104220 is an abundant number, since it is smaller than the sum of its proper divisors (54688740).

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

30104220 is a wasteful number, since it uses less digits than its factorization.

30104220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994 (or 2992 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30104220 is about 5486.7312673394. The cubic root of 30104220 is about 311.0826522532.

Adding to 30104220 its reverse (2240103), we get a palindrome (32344323).

The spelling of 30104220 in words is "thirty million, one hundred four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 179 358 537 716 895 1074 1790 2148 2685 2803 3580 5370 5606 8409 10740 11212 14015 16818 28030 33636 42045 56060 84090 168180 501737 1003474 1505211 2006948 2508685 3010422 5017370 6020844 7526055 10034740 15052110 30104220