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307107030 = 23537276673
BaseRepresentation
bin10010010011100…
…001010011010110
3210101212122122110
4102103201103112
51112104411110
650250211450
710416236526
oct2223412326
9711778573
10307107030
1114839906a
1286a23b86
134b818949
142cb03686
151be64a20
hex124e14d6

307107030 has 32 divisors (see below), whose sum is σ = 756980064. Its totient is φ = 79681536.

The previous prime is 307107019. The next prime is 307107037. The reversal of 307107030 is 30701703.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 307106988 and 307107006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307107037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137227 + ... + 139446.

It is an arithmetic number, because the mean of its divisors is an integer number (23655627).

Almost surely, 2307107030 is an apocalyptic number.

307107030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

307107030 is an abundant number, since it is smaller than the sum of its proper divisors (449873034).

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

307107030 is a wasteful number, since it uses less digits than its factorization.

307107030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276720.

The product of its (nonzero) digits is 441, while the sum is 21.

The square root of 307107030 is about 17524.4694641521. The cubic root of 307107030 is about 674.6780577218.

Adding to 307107030 its reverse (30701703), we get a palindrome (337808733).

The spelling of 307107030 in words is "three hundred seven million, one hundred seven thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 276673 553346 830019 1383365 1660038 2766730 4150095 8300190 10236901 20473802 30710703 51184505 61421406 102369010 153553515 307107030