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2987901284 = 22746975321
BaseRepresentation
bin1011001000010111…
…1100000101100100
321201020021010000112
42302011330011210
522104400320114
61212253032152
7134020512314
oct26205740544
97636233015
102987901284
1112a3657505
126b4785658
13388039634
14204b77444
151274a413e
hexb217c164

2987901284 has 6 divisors (see below), whose sum is σ = 5228827254. Its totient is φ = 1493950640.

The previous prime is 2987901271. The next prime is 2987901331. The reversal of 2987901284 is 4821097892.

It can be written as a sum of positive squares in only one way, i.e., 2967198784 + 20702500 = 54472^2 + 4550^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373487657 + ... + 373487664.

It is an arithmetic number, because the mean of its divisors is an integer number (871471209).

Almost surely, 22987901284 is an apocalyptic number.

It is an amenable number.

2987901284 is a deficient number, since it is larger than the sum of its proper divisors (2240925970).

2987901284 is a wasteful number, since it uses less digits than its factorization.

2987901284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746975325 (or 746975323 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 2987901284 is about 54661.6985100170. The cubic root of 2987901284 is about 1440.3081394334.

The spelling of 2987901284 in words is "two billion, nine hundred eighty-seven million, nine hundred one thousand, two hundred eighty-four".

Divisors: 1 2 4 746975321 1493950642 2987901284