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29870290944 = 2113101319
BaseRepresentation
bin11011110100011010…
…000111100000000000
32212002201020000000000
4123310122013200000
5442133243302234
621420000000000
72105133166224
oct336432074000
985081200000
1029870290944
111173900076a
125957600000
132a8054bb90
141635122784
15b9c556899
hex6f4687800

29870290944 has 528 divisors, whose sum is σ = 101557801800. Its totient is φ = 8707129344.

The previous prime is 29870290943. The next prime is 29870290949. The reversal of 29870290944 is 44909207892.

It is a super-2 number, since 2×298702909442 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29870290943) by changing a digit.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 1572120567 + ... + 1572120585.

Almost surely, 229870290944 is an apocalyptic number.

29870290944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29870290944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50778900900).

29870290944 is an abundant number, since it is smaller than the sum of its proper divisors (71687510856).

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

29870290944 is an frugal number, since it uses more digits than its factorization.

29870290944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 29870290944 in words is "twenty-nine billion, eight hundred seventy million, two hundred ninety thousand, nine hundred forty-four".