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20542805410 = 252717580371
BaseRepresentation
bin10011001000011100…
…100101010110100010
31222000122220122021211
4103020130211112202
5314032424233120
613234235340334
71325032651651
oct231034452642
958018818254
1020542805410
118791972836
123b938b16aa
131c24c9947a
14dcc421198
1580373c25a
hex4c87255a2

20542805410 has 16 divisors (see below), whose sum is σ = 37113501312. Its totient is φ = 8186799600.

The previous prime is 20542805407. The next prime is 20542805467. The reversal of 20542805410 is 1450824502.

It is a super-2 number, since 2×205428054102 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3787476 + ... + 3792895.

It is an arithmetic number, because the mean of its divisors is an integer number (2319593832).

Almost surely, 220542805410 is an apocalyptic number.

20542805410 is a deficient number, since it is larger than the sum of its proper divisors (16570695902).

20542805410 is a wasteful number, since it uses less digits than its factorization.

20542805410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7580649.

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 20542805410 in words is "twenty billion, five hundred forty-two million, eight hundred five thousand, four hundred ten".

Divisors: 1 2 5 10 271 542 1355 2710 7580371 15160742 37901855 75803710 2054280541 4108561082 10271402705 20542805410