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40001431352 = 2320219247301
BaseRepresentation
bin100101010000010001…
…010110011100111000
310211020202202020221112
4211100101112130320
51123410331300402
630213145255452
72614162361561
oct452021263470
9124222666845
1040001431352
1115a67846483
127904494588
133a06463c0c
141d16861168
151091bbae52
hex950456738

40001431352 has 16 divisors (see below), whose sum is σ = 75006696600. Its totient is φ = 19999645600.

The previous prime is 40001431319. The next prime is 40001431369. The reversal of 40001431352 is 25313410004.

It is a super-2 number, since 2×400014313522 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38102 + ... + 285402.

Almost surely, 240001431352 is an apocalyptic number.

It is an amenable number.

40001431352 is a deficient number, since it is larger than the sum of its proper divisors (35005265248).

40001431352 is a wasteful number, since it uses less digits than its factorization.

40001431352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267526 (or 267522 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40001431352 its reverse (25313410004), we get a palindrome (65314841356).

The spelling of 40001431352 in words is "forty billion, one million, four hundred thirty-one thousand, three hundred fifty-two".

Divisors: 1 2 4 8 20219 40438 80876 161752 247301 494602 989204 1978408 5000178919 10000357838 20000715676 40001431352