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40040212552 = 23194711534861
BaseRepresentation
bin100101010010100101…
…010010100001001000
310211100110201112202021
4211102211102201020
51124000243300202
630221052414224
72615143122364
oct452245224110
9124313645667
1040040212552
1115a8772435a
127915477374
133a114c1a82
141d1ba782a4
1510952cba37
hex952952848

40040212552 has 64 divisors (see below), whose sum is σ = 80794771200. Its totient is φ = 18542960640.

The previous prime is 40040212549. The next prime is 40040212603. The reversal of 40040212552 is 25521204004.

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 15 ways as a sum of consecutive naturals, for example, 8234602 + ... + 8239462.

It is an arithmetic number, because the mean of its divisors is an integer number (1262418300).

Almost surely, 240040212552 is an apocalyptic number.

It is an amenable number.

40040212552 is an abundant number, since it is smaller than the sum of its proper divisors (40754558648).

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

40040212552 is a wasteful number, since it uses less digits than its factorization.

40040212552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086 (or 6082 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 40040212552 its reverse (25521204004), we get a palindrome (65561416556).

The spelling of 40040212552 in words is "forty billion, forty million, two hundred twelve thousand, five hundred fifty-two".

Divisors: 1 2 4 8 19 38 47 76 94 152 188 376 893 1153 1786 2306 3572 4612 4861 7144 9224 9722 19444 21907 38888 43814 54191 87628 92359 108382 175256 184718 216764 228467 369436 433528 456934 738872 913868 1029629 1827736 2059258 4118516 4340873 5604733 8237032 8681746 11209466 17363492 22418932 34726984 44837864 106489927 212979854 263422451 425959708 526844902 851919416 1053689804 2107379608 5005026569 10010053138 20020106276 40040212552