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13471974 = 2332310847
BaseRepresentation
bin110011011001…
…000011100110
3221100110002000
4303121003212
511422100344
61200430130
7222336615
oct63310346
927313060
1013471974
11767176a
124618346
132a38ca9
141b0987c
1512b1a69
hexcd90e6

13471974 has 32 divisors (see below), whose sum is σ = 31242240. Its totient is φ = 4295016.

The previous prime is 13471967. The next prime is 13471981. The reversal of 13471974 is 47917431.

13471974 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13471967) and next prime (13471981).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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, 4182 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (976320).

Almost surely, 213471974 is an apocalyptic number.

13471974 is an abundant number, since it is smaller than the sum of its proper divisors (17770266).

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

13471974 is a wasteful number, since it uses less digits than its factorization.

13471974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10881 (or 10875 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 13471974 is about 3670.4187771970. The cubic root of 13471974 is about 237.9452714120.

It can be divided in two parts, 1347 and 1974, that added together give a triangular number (3321 = T81).

The spelling of 13471974 in words is "thirteen million, four hundred seventy-one thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 9 18 23 27 46 54 69 138 207 414 621 1242 10847 21694 32541 65082 97623 195246 249481 292869 498962 585738 748443 1496886 2245329 4490658 6735987 13471974