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70380228 = 2235865019
BaseRepresentation
bin1000011000111…
…10101011000100
311220102200112010
410030132223010
5121004131403
610552254220
71513136112
oct414365304
9156380463
1070380228
1136800786
121b6a1370
1311772909
1494c0ab2
1562a3603
hex431eac4

70380228 has 12 divisors (see below), whose sum is σ = 164220560. Its totient is φ = 23460072.

The previous prime is 70380227. The next prime is 70380257. The reversal of 70380228 is 82208307.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 70380195 and 70380204.

It is not an unprimeable number, because it can be changed into a prime (70380223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2932498 + ... + 2932521.

Almost surely, 270380228 is an apocalyptic number.

It is an amenable number.

70380228 is an abundant number, since it is smaller than the sum of its proper divisors (93840332).

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

70380228 is a wasteful number, since it uses less digits than its factorization.

70380228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865026 (or 5865024 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 70380228 is about 8389.2924612270. The cubic root of 70380228 is about 412.8733868009.

The spelling of 70380228 in words is "seventy million, three hundred eighty thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 5865019 11730038 17595057 23460076 35190114 70380228