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29351882144 = 25132373832
BaseRepresentation
bin11011010101100000…
…100010110110100000
32210202120202002211002
4123111200202312200
5440103040212034
621252320411132
72056236611264
oct332540426640
983676662732
1029351882144
11114a2410542
125831a76aa8
1329ca01ca00
1415c63380a4
15b6bca3e7e
hex6d5822da0

29351882144 has 108 divisors (see below), whose sum is σ = 64432975446. Its totient is φ = 13146471936.

The previous prime is 29351882123. The next prime is 29351882149. The reversal of 29351882144 is 44128815392.

It can be written as a sum of positive squares in 3 ways, for example, as 21181891600 + 8169990544 = 145540^2 + 90388^2 .

It is not an unprimeable number, because it can be changed into a prime (29351882149) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 76636577 + ... + 76636959.

Almost surely, 229351882144 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 29351882144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32216487723).

29351882144 is an abundant number, since it is smaller than the sum of its proper divisors (35081093302).

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

29351882144 is an equidigital number, since it uses as much as digits as its factorization.

29351882144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839 (or 435 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The spelling of 29351882144 in words is "twenty-nine billion, three hundred fifty-one million, eight hundred eighty-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 13 16 26 32 37 52 74 104 148 169 208 296 338 383 416 481 592 676 766 962 1184 1352 1532 1924 2704 3064 3848 4979 5408 6128 6253 7696 9958 12256 12506 14171 15392 19916 25012 28342 39832 50024 56684 64727 79664 100048 113368 129454 146689 159328 184223 200096 226736 258908 293378 368446 453472 517816 586756 736892 1035632 1173512 1473784 1906957 2071264 2347024 2394899 2947568 3813914 4694048 4789798 5427493 5895136 7627828 9579596 10854986 15255656 19159192 21709972 24790441 30511312 38318384 43419944 49580882 61022624 70557409 76636768 86839888 99161764 141114818 173679776 198323528 282229636 396647056 564459272 793294112 917246317 1128918544 1834492634 2257837088 3668985268 7337970536 14675941072 29351882144