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70801028 = 2217700257
BaseRepresentation
bin1000011100001…
…01011010000100
311221020001202022
410032011122010
5121111113103
611005302312
71516540664
oct416053204
9157201668
1070801028
1136a68951
121b864998
131188c2cc
1495901a4
156338138
hex4385684

70801028 has 6 divisors (see below), whose sum is σ = 123901806. Its totient is φ = 35400512.

The previous prime is 70801019. The next prime is 70801033. The reversal of 70801028 is 82010807.

It can be written as a sum of positive squares in only one way, i.e., 64288324 + 6512704 = 8018^2 + 2552^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70800988 and 70801006.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8850125 + ... + 8850132.

It is an arithmetic number, because the mean of its divisors is an integer number (20650301).

Almost surely, 270801028 is an apocalyptic number.

It is an amenable number.

70801028 is a deficient number, since it is larger than the sum of its proper divisors (53100778).

70801028 is a wasteful number, since it uses less digits than its factorization.

70801028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700261 (or 17700259 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 70801028 is about 8414.3346736388. The cubic root of 70801028 is about 413.6946023438.

The spelling of 70801028 in words is "seventy million, eight hundred one thousand, twenty-eight".

Divisors: 1 2 4 17700257 35400514 70801028