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29771030 = 253977499
BaseRepresentation
bin111000110010…
…0010100010110
32002000112011202
41301210110112
530110133110
62542032502
7511023002
oct161442426
962015152
1029771030
1115894463
129b78732
1362249c3
143d4d702
1529310a5
hex1c64516

29771030 has 16 divisors (see below), whose sum is σ = 53730000. Its totient is φ = 11876832.

The previous prime is 29771011. The next prime is 29771033. The reversal of 29771030 is 3017792.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29770984 and 29771002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29771033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221 + ... + 7719.

It is an arithmetic number, because the mean of its divisors is an integer number (3358125).

Almost surely, 229771030 is an apocalyptic number.

29771030 is a deficient number, since it is larger than the sum of its proper divisors (23958970).

29771030 is a wasteful number, since it uses less digits than its factorization.

29771030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7903.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 29771030 is about 5456.2835336885. The cubic root of 29771030 is about 309.9307163931.

The spelling of 29771030 in words is "twenty-nine million, seven hundred seventy-one thousand, thirty".

Divisors: 1 2 5 10 397 794 1985 3970 7499 14998 37495 74990 2977103 5954206 14885515 29771030