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2949703680 = 211357112943
BaseRepresentation
bin1010111111010000…
…1110100000000000
321121120101110202110
42233310032200000
522020111004210
61204410215320
7133045032120
oct25764164000
97546343673
102949703680
111284038040
126a3a24540
133801542c1
141dda72c80
15123e5b420
hexafd0e800

2949703680 has 768 divisors, whose sum is σ = 12454041600. Its totient is φ = 578027520.

The previous prime is 2949703667. The next prime is 2949703693. The reversal of 2949703680 is 863079492.

It is an interprime number because it is at equal distance from previous prime (2949703667) and next prime (2949703693).

It is a tau number, because it is divible by the number of its divisors (768).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68597739 + ... + 68597781.

It is an arithmetic number, because the mean of its divisors is an integer number (16216200).

Almost surely, 22949703680 is an apocalyptic number.

2949703680 is a gapful number since it is divisible by the number (20) 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 2949703680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6227020800).

2949703680 is an abundant number, since it is smaller than the sum of its proper divisors (9504337920).

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

2949703680 is a wasteful number, since it uses less digits than its factorization.

2949703680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 2949703680 is about 54311.1745407886. The cubic root of 2949703680 is about 1434.1441200911.

The spelling of 2949703680 in words is "two billion, nine hundred forty-nine million, seven hundred three thousand, six hundred eighty".