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70630307 = 1131207127
BaseRepresentation
bin1000011010110…
…11101110100011
311220220101120022
410031123232203
5121040132212
611001504055
71515230156
oct415335643
9156811508
1070630307
1136961660
121b7a202b
131182c6a7
149547c9d
156302772
hex435bba3

70630307 has 8 divisors (see below), whose sum is σ = 79537152. Its totient is φ = 62137800.

The previous prime is 70630297. The next prime is 70630333. The reversal of 70630307 is 70303607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70630307 - 26 = 70630243 is a prime.

It is a super-3 number, since 3×706303073 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70630337) 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, 103223 + ... + 103904.

It is an arithmetic number, because the mean of its divisors is an integer number (9942144).

Almost surely, 270630307 is an apocalyptic number.

70630307 is a deficient number, since it is larger than the sum of its proper divisors (8906845).

70630307 is a wasteful number, since it uses less digits than its factorization.

70630307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207169.

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 70630307 is about 8404.1838985115. The cubic root of 70630307 is about 413.3618237530.

It can be divided in two parts, 706 and 30307, that added together give a palindrome (31013).

The spelling of 70630307 in words is "seventy million, six hundred thirty thousand, three hundred seven".

Divisors: 1 11 31 341 207127 2278397 6420937 70630307