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20070369 = 331167577
BaseRepresentation
bin100110010001…
…1111111100001
31101202200101000
41030203333201
520114222434
61554102213
7332411124
oct114437741
941680330
1020070369
1110369190
12687a969
134209477
1429463bb
151b66b99
hex1323fe1

20070369 has 16 divisors (see below), whose sum is σ = 32437440. Its totient is φ = 12163680.

The previous prime is 20070343. The next prime is 20070371. The reversal of 20070369 is 96307002.

It is not a de Polignac number, because 20070369 - 29 = 20069857 is a prime.

It is a super-2 number, since 2×200703692 = 805639423592322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20070389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33492 + ... + 34085.

It is an arithmetic number, because the mean of its divisors is an integer number (2027340).

Almost surely, 220070369 is an apocalyptic number.

It is an amenable number.

20070369 is a deficient number, since it is larger than the sum of its proper divisors (12367071).

20070369 is a wasteful number, since it uses less digits than its factorization.

20070369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67597 (or 67591 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 20070369 is about 4479.9965401772. The cubic root of 20070369 is about 271.7597404419.

20070369 divided by its sum of digits (27) gives a palindrome (743347).

The spelling of 20070369 in words is "twenty million, seventy thousand, three hundred sixty-nine".

Divisors: 1 3 9 11 27 33 99 297 67577 202731 608193 743347 1824579 2230041 6690123 20070369