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29398390 = 2571093853
BaseRepresentation
bin111000000100…
…1010101110110
32001022121000021
41300021111312
530011222030
62530035354
7504611410
oct160112566
961277007
1029398390
111565a49a
129a18b5a
1361241c8
143c939b0
1528aa97a
hex1c09576

29398390 has 32 divisors (see below), whose sum is σ = 61047360. Its totient is φ = 9984384.

The previous prime is 29398381. The next prime is 29398433. The reversal of 29398390 is 9389392.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 5704 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (1907730).

Almost surely, 229398390 is an apocalyptic number.

29398390 is an abundant number, since it is smaller than the sum of its proper divisors (31648970).

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

29398390 is a wasteful number, since it uses less digits than its factorization.

29398390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 29398390 is about 5422.0282182962. The cubic root of 29398390 is about 308.6321628485.

The spelling of 29398390 in words is "twenty-nine million, three hundred ninety-eight thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 109 218 545 763 1090 1526 3815 3853 7630 7706 19265 26971 38530 53942 134855 269710 419977 839954 2099885 2939839 4199770 5879678 14699195 29398390