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70380312 = 23371103401
BaseRepresentation
bin1000011000111…
…10101100011000
311220102200122020
410030132230120
5121004132222
610552254440
71513136262
oct414365430
9156380566
1070380312
1136800852
121b6a1420
1311772972
1494c0b32
1562a365c
hex431eb18

70380312 has 64 divisors (see below), whose sum is σ = 180610560. Its totient is φ = 22848000.

The previous prime is 70380307. The next prime is 70380337. The reversal of 70380312 is 21308307.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175312 + ... + 175712.

It is an arithmetic number, because the mean of its divisors is an integer number (2822040).

Almost surely, 270380312 is an apocalyptic number.

It is an amenable number.

70380312 is an abundant number, since it is smaller than the sum of its proper divisors (110230248).

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

70380312 is a wasteful number, since it uses less digits than its factorization.

70380312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 70380312 is about 8389.2974676072. The cubic root of 70380312 is about 412.8735510580.

Adding to 70380312 its reverse (21308307), we get a palindrome (91688619).

The spelling of 70380312 in words is "seventy million, three hundred eighty thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 71 103 142 206 213 284 309 401 412 426 568 618 802 824 852 1203 1236 1604 1704 2406 2472 3208 4812 7313 9624 14626 21939 28471 29252 41303 43878 56942 58504 82606 85413 87756 113884 123909 165212 170826 175512 227768 247818 330424 341652 495636 683304 991272 2932513 5865026 8797539 11730052 17595078 23460104 35190156 70380312