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36378891040 = 2551012251169
BaseRepresentation
bin100001111000010110…
…011101001100100000
310110220022022010211211
4201320112131030200
51044000444003130
624413501515504
72425334320552
oct417026351440
9113808263754
1036378891040
1114478a32308
127073272b94
133579ac133b
141a916c54d2
15e2db55a2a
hex87859d320

36378891040 has 48 divisors (see below), whose sum is σ = 86796110520. Its totient is φ = 14407475200.

The previous prime is 36378891001. The next prime is 36378891049. The reversal of 36378891040 is 4019887363.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36095440144 + 283450896 = 189988^2 + 16836^2 .

It is not an unprimeable number, because it can be changed into a prime (36378891049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109425 + ... + 1141744.

Almost surely, 236378891040 is an apocalyptic number.

It is an amenable number.

36378891040 is an abundant number, since it is smaller than the sum of its proper divisors (50417219480).

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

36378891040 is a wasteful number, since it uses less digits than its factorization.

36378891040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251285 (or 2251277 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 36378891040 in words is "thirty-six billion, three hundred seventy-eight million, eight hundred ninety-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 101 160 202 404 505 808 1010 1616 2020 3232 4040 8080 16160 2251169 4502338 9004676 11255845 18009352 22511690 36018704 45023380 72037408 90046760 180093520 227368069 360187040 454736138 909472276 1136840345 1818944552 2273680690 3637889104 4547361380 7275778208 9094722760 18189445520 36378891040