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70903197 = 3237321121
BaseRepresentation
bin1000011100111…
…10010110011101
311221102020220100
410032132112131
5121122400242
611011411313
71520444601
oct416362635
9157366810
1070903197
1137028692
121b8b3b39
13118c6971
1495b9501
15635854c
hex439e59d

70903197 has 12 divisors (see below), whose sum is σ = 102695164. Its totient is φ = 47139840.

The previous prime is 70903177. The next prime is 70903201. The reversal of 70903197 is 79130907.

It can be written as a sum of positive squares in 2 ways, for example, as 45441081 + 25462116 = 6741^2 + 5046^2 .

It is not a de Polignac number, because 70903197 - 27 = 70903069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70903127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7204 + ... + 13917.

Almost surely, 270903197 is an apocalyptic number.

It is an amenable number.

70903197 is a deficient number, since it is larger than the sum of its proper divisors (31791967).

70903197 is a wasteful number, since it uses less digits than its factorization.

70903197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21500 (or 21497 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 70903197 is about 8420.4036126542. The cubic root of 70903197 is about 413.8934998757.

The spelling of 70903197 in words is "seventy million, nine hundred three thousand, one hundred ninety-seven".

Divisors: 1 3 9 373 1119 3357 21121 63363 190089 7878133 23634399 70903197