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20606276 = 227396971
BaseRepresentation
bin100111010011…
…0110101000100
31102202220111102
41032212311010
520233400101
62013355232
7340102415
oct116466504
942686442
1020606276
11106a4889
126a98b18
134366382
142a4580c
151c2086b
hex13a6d44

20606276 has 12 divisors (see below), whose sum is σ = 36114960. Its totient is φ = 10287720.

The previous prime is 20606273. The next prime is 20606293. The reversal of 20606276 is 67260602.

It is a super-2 number, since 2×206062762 = 849237221176352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20606273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530 + ... + 6441.

It is an arithmetic number, because the mean of its divisors is an integer number (3009580).

Almost surely, 220606276 is an apocalyptic number.

It is an amenable number.

20606276 is a deficient number, since it is larger than the sum of its proper divisors (15508684).

20606276 is a wasteful number, since it uses less digits than its factorization.

20606276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714 (or 7712 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20606276 is about 4539.4136185195. The cubic root of 20606276 is about 274.1573146027.

Adding to 20606276 its reverse (67260602), we get a palindrome (87866878).

The spelling of 20606276 in words is "twenty million, six hundred six thousand, two hundred seventy-six".

Divisors: 1 2 4 739 1478 2956 6971 13942 27884 5151569 10303138 20606276