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40071858542 = 256891352181
BaseRepresentation
bin100101010100011110…
…000000100101101110
310211102200021022212222
4211110132000211232
51124031343433132
630224142555342
72616006114632
oct452436004556
9124380238788
1040071858542
1115aa3579471
127923b98b52
133a17c22001
141d21d54dc2
151097e7d412
hex95478096e

40071858542 has 8 divisors (see below), whose sum is σ = 60109015032. Its totient is φ = 20035520200.

The previous prime is 40071858509. The next prime is 40071858551. The reversal of 40071858542 is 24585817004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40071858493 and 40071858502.

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, 62309 + ... + 289872.

It is an arithmetic number, because the mean of its divisors is an integer number (7513626879).

Almost surely, 240071858542 is an apocalyptic number.

40071858542 is a deficient number, since it is larger than the sum of its proper divisors (20037156490).

40071858542 is a wasteful number, since it uses less digits than its factorization.

40071858542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409074.

The product of its (nonzero) digits is 358400, while the sum is 44.

The spelling of 40071858542 in words is "forty billion, seventy-one million, eight hundred fifty-eight thousand, five hundred forty-two".

Divisors: 1 2 56891 113782 352181 704362 20035929271 40071858542