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70677380 = 2254382183
BaseRepresentation
bin1000011011001…
…11001110000100
311220222210010202
410031213032010
5121043134010
611002510032
71515514334
oct415471604
9156883122
1070677380
1136993a64
121b805318
1311847c47
14955b0c4
1563116a5
hex4367384

70677380 has 24 divisors (see below), whose sum is σ = 151876032. Its totient is φ = 27613152.

The previous prime is 70677377. The next prime is 70677389. The reversal of 70677380 is 8377607.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (70677389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40232 + ... + 41951.

It is an arithmetic number, because the mean of its divisors is an integer number (6328168).

Almost surely, 270677380 is an apocalyptic number.

It is an amenable number.

70677380 is an abundant number, since it is smaller than the sum of its proper divisors (81198652).

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

70677380 is a wasteful number, since it uses less digits than its factorization.

70677380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82235 (or 82233 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 70677380 is about 8406.9840014122. The cubic root of 70677380 is about 413.4536344822.

The spelling of 70677380 in words is "seventy million, six hundred seventy-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 82183 164366 328732 410915 821830 1643660 3533869 7067738 14135476 17669345 35338690 70677380