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2947674240 = 2734578123
BaseRepresentation
bin1010111110110001…
…1111000010000000
321121102120100220000
42233230133002000
522014101033430
61204254520000
7133021550310
oct25754370200
97542510800
102947674240
111282981315
126a3206000
1337c8c3654
141dd6a5440
15123ba9e60
hexafb1f080

2947674240 has 320 divisors, whose sum is σ = 12031968960. Its totient is φ = 673671168.

The previous prime is 2947674211. The next prime is 2947674241. The reversal of 2947674240 is 424767492.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947674241) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 358819 + ... + 366941.

It is an arithmetic number, because the mean of its divisors is an integer number (37599903).

Almost surely, 22947674240 is an apocalyptic number.

2947674240 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 2947674240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6015984480).

2947674240 is an abundant number, since it is smaller than the sum of its proper divisors (9084294720).

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

2947674240 is an equidigital number, since it uses as much as digits as its factorization.

2947674240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161 (or 8140 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 2947674240 is about 54292.4878781586. The cubic root of 2947674240 is about 1433.8151404708.

The spelling of 2947674240 in words is "two billion, nine hundred forty-seven million, six hundred seventy-four thousand, two hundred forty".