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352345231 = 7273137719
BaseRepresentation
bin10101000000000…
…101110010001111
3220112222222210101
4111000011302033
51210200021411
654543551531
711505612400
oct2500056217
9815888711
10352345231
11170987207
1299bbb5a7
1357cc7804
1434b1b9a7
1520ded8c1
hex15005c8f

352345231 has 24 divisors (see below), whose sum is σ = 419100480. Its totient is φ = 295287552.

The previous prime is 352345223. The next prime is 352345237. The reversal of 352345231 is 132543253.

It is not a de Polignac number, because 352345231 - 23 = 352345223 is a prime.

It is a super-2 number, since 2×3523452312 = 248294323616886722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 352345231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352345237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489690 + ... + 490408.

It is an arithmetic number, because the mean of its divisors is an integer number (17462520).

Almost surely, 2352345231 is an apocalyptic number.

352345231 is a deficient number, since it is larger than the sum of its proper divisors (66755249).

352345231 is a wasteful number, since it uses less digits than its factorization.

352345231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 936 counting only the distinct ones).

The product of its digits is 10800, while the sum is 28.

The square root of 352345231 is about 18770.8612215849. The cubic root of 352345231 is about 706.3004222648.

Adding to 352345231 its reverse (132543253), we get a palindrome (484888484).

The spelling of 352345231 in words is "three hundred fifty-two million, three hundred forty-five thousand, two hundred thirty-one".

Divisors: 1 7 49 73 137 511 719 959 3577 5033 6713 10001 35231 52487 70007 98503 367409 490049 689521 2571863 4826647 7190719 50335033 352345231