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29668770 = 2325714643
BaseRepresentation
bin111000100101…
…1010110100010
32001211022220100
41301023112202
530043400040
62535523230
7510115605
oct161132642
961738810
1029668770
111582464a
129b29516
1361ba2b1
143d2433c
152910b30
hex1c4b5a2

29668770 has 48 divisors (see below), whose sum is σ = 78242112. Its totient is φ = 7798560.

The previous prime is 29668759. The next prime is 29668777. The reversal of 29668770 is 7786692.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (29668777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4069 + ... + 8711.

It is an arithmetic number, because the mean of its divisors is an integer number (1630044).

Almost surely, 229668770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29668770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39121056).

29668770 is an abundant number, since it is smaller than the sum of its proper divisors (48573342).

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

29668770 is a wasteful number, since it uses less digits than its factorization.

29668770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4727 (or 4724 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 29668770 is about 5446.9046255649. The cubic root of 29668770 is about 309.5754507506.

The spelling of 29668770 in words is "twenty-nine million, six hundred sixty-eight thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 71 90 142 213 355 426 639 710 1065 1278 2130 3195 4643 6390 9286 13929 23215 27858 41787 46430 69645 83574 139290 208935 329653 417870 659306 988959 1648265 1977918 2966877 3296530 4944795 5933754 9889590 14834385 29668770