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70678228 = 2271248867
BaseRepresentation
bin1000011011001…
…11011011010100
311220222211022011
410031213123110
5121043200403
611002514004
71515516655
oct415473324
9156884264
1070678228
1136994665
121b805904
131184844a
14955b52c
156311a6d
hex43676d4

70678228 has 12 divisors (see below), whose sum is σ = 125429472. Its totient is φ = 34841240.

The previous prime is 70678211. The next prime is 70678229. The reversal of 70678228 is 82287607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70678229) 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, 124150 + ... + 124717.

It is an arithmetic number, because the mean of its divisors is an integer number (10452456).

Almost surely, 270678228 is an apocalyptic number.

It is an amenable number.

70678228 is a deficient number, since it is larger than the sum of its proper divisors (54751244).

70678228 is a wasteful number, since it uses less digits than its factorization.

70678228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248942 (or 248940 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 70678228 is about 8407.0344355189. The cubic root of 70678228 is about 413.4552880394.

The spelling of 70678228 in words is "seventy million, six hundred seventy-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 71 142 284 248867 497734 995468 17669557 35339114 70678228