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29390231448 = 23321785927953
BaseRepresentation
bin11011010111110010…
…110101011110011000
32210212020220110011200
4123113302311132120
5440142344401243
621300210354200
72060213562654
oct332762653630
983766813150
1029390231448
1111512023986
12584288b960
132a04c590c6
1415cb47ba64
15b7032bad3
hex6d7cb5798

29390231448 has 96 divisors (see below), whose sum is σ = 84381944400. Its totient is φ = 9209401344.

The previous prime is 29390231441. The next prime is 29390231489. The reversal of 29390231448 is 84413209392.

29390231448 is a `hidden beast` number, since 2 + 93 + 90 + 2 + 31 + 448 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29390231441) 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, 1037440 + ... + 1065392.

Almost surely, 229390231448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29390231448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42190972200).

29390231448 is an abundant number, since it is smaller than the sum of its proper divisors (54991712952).

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

29390231448 is a wasteful number, since it uses less digits than its factorization.

29390231448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28841 (or 28834 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 29390231448 in words is "twenty-nine billion, three hundred ninety million, two hundred thirty-one thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 859 1224 1718 2577 3436 5154 6872 7731 10308 14603 15462 20616 27953 29206 30924 43809 55906 58412 61848 83859 87618 111812 116824 131427 167718 175236 223624 251577 262854 335436 350472 475201 503154 525708 670872 950402 1006308 1051416 1425603 1900804 2012616 2851206 3801608 4276809 5702412 8553618 11404824 17107236 24011627 34214472 48023254 72034881 96046508 144069762 192093016 216104643 288139524 408197659 432209286 576279048 816395318 864418572 1224592977 1632790636 1728837144 2449185954 3265581272 3673778931 4898371908 7347557862 9796743816 14695115724 29390231448