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20695896 = 23321322111
BaseRepresentation
bin100111011110…
…0101101011000
31102221110102200
41032330231120
520244232041
62015330200
7340624614
oct116745530
942843380
1020695896
1110756151
126b20960
1343980c0
142a6a344
151c3c1b6
hex13bcb58

20695896 has 48 divisors (see below), whose sum is σ = 60365760. Its totient is φ = 6367680.

The previous prime is 20695891. The next prime is 20695901. The reversal of 20695896 is 69859602.

20695896 is a `hidden beast` number, since 2 + 0 + 69 + 589 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (20695891) and next prime (20695901).

It is a super-2 number, since 2×206958962 = 856640222485632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20695891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10120 + ... + 11991.

It is an arithmetic number, because the mean of its divisors is an integer number (1257620).

Almost surely, 220695896 is an apocalyptic number.

20695896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20695896 is an abundant number, since it is smaller than the sum of its proper divisors (39669864).

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

20695896 is a wasteful number, since it uses less digits than its factorization.

20695896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22136 (or 22129 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 20695896 is about 4549.2742278302. The cubic root of 20695896 is about 274.5541911782.

It can be divided in two parts, 2069589 and 6, that added together give a triangular number (2069595 = T2034).

The spelling of 20695896 in words is "twenty million, six hundred ninety-five thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 22111 44222 66333 88444 132666 176888 198999 265332 287443 397998 530664 574886 795996 862329 1149772 1591992 1724658 2299544 2586987 3449316 5173974 6898632 10347948 20695896