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30374220 = 22354710771
BaseRepresentation
bin111001111011…
…1100101001100
32010011011121010
41303313211030
530233433340
63003005220
7516114402
oct163674514
963134533
1030374220
1116166668
12a209810
1363a6416
144069472
1529eeb80
hex1cf794c

30374220 has 48 divisors (see below), whose sum is σ = 86865408. Its totient is φ = 7926720.

The previous prime is 30374219. The next prime is 30374221. The reversal of 30374220 is 2247303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30374219) and next prime (30374221).

It is not an unprimeable number, because it can be changed into a prime (30374221) 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, 2566 + ... + 8205.

It is an arithmetic number, because the mean of its divisors is an integer number (1809696).

Almost surely, 230374220 is an apocalyptic number.

30374220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30374220 is an abundant number, since it is smaller than the sum of its proper divisors (56491188).

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

30374220 is a wasteful number, since it uses less digits than its factorization.

30374220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10830 (or 10828 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 30374220 is about 5511.2811577708. The cubic root of 30374220 is about 312.0099027100.

The spelling of 30374220 in words is "thirty million, three hundred seventy-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 60 94 141 188 235 282 470 564 705 940 1410 2820 10771 21542 32313 43084 53855 64626 107710 129252 161565 215420 323130 506237 646260 1012474 1518711 2024948 2531185 3037422 5062370 6074844 7593555 10124740 15187110 30374220