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30374120 = 2357215497
BaseRepresentation
bin111001111011…
…1100011101000
32010011011110102
41303313203220
530233432440
63003004532
7516114200
oct163674350
963134412
1030374120
1116166587
12a209748
1363a636a
144069400
1529eeb15
hex1cf78e8

30374120 has 48 divisors (see below), whose sum is σ = 79504740. Its totient is φ = 10413312.

The previous prime is 30374119. The next prime is 30374167. The reversal of 30374120 is 2147303.

It can be written as a sum of positive squares in 2 ways, for example, as 28751044 + 1623076 = 5362^2 + 1274^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30374092 and 30374101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5789 + ... + 9708.

Almost surely, 230374120 is an apocalyptic number.

It is an amenable number.

30374120 is an abundant number, since it is smaller than the sum of its proper divisors (49130620).

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

30374120 is a wasteful number, since it uses less digits than its factorization.

30374120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15522 (or 15511 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30374120 is about 5511.2720854627. The cubic root of 30374120 is about 312.0095603031.

The spelling of 30374120 in words is "thirty million, three hundred seventy-four thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1960 15497 30994 61988 77485 108479 123976 154970 216958 309940 433916 542395 619880 759353 867832 1084790 1518706 2169580 3037412 3796765 4339160 6074824 7593530 15187060 30374120