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70903230 = 2352363441
BaseRepresentation
bin1000011100111…
…10010110111110
311221102020221120
410032132112332
5121122400410
611011411410
71520444646
oct416362676
9157366846
1070903230
1137028712
121b8b3b66
13118c6998
1495b9526
156358570
hex439e5be

70903230 has 16 divisors (see below), whose sum is σ = 170167824. Its totient is φ = 18907520.

The previous prime is 70903201. The next prime is 70903249. The reversal of 70903230 is 3230907.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70903230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181691 + ... + 1181750.

It is an arithmetic number, because the mean of its divisors is an integer number (10635489).

Almost surely, 270903230 is an apocalyptic number.

70903230 is an abundant number, since it is smaller than the sum of its proper divisors (99264594).

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

70903230 is a wasteful number, since it uses less digits than its factorization.

70903230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363451.

The product of its (nonzero) digits is 1134, while the sum is 24.

The square root of 70903230 is about 8420.4055721800. The cubic root of 70903230 is about 413.8935640876.

The spelling of 70903230 in words is "seventy million, nine hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2363441 4726882 7090323 11817205 14180646 23634410 35451615 70903230