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71486048263890 = 23513183297559651
BaseRepresentation
bin10000010000010000100100…
…100000110101111011010010
3100101002222222121121021120010
4100100100210200311323102
533332211411323421030
6412012123123055350
721025460626330101
oct2020204440657322
9311088877537503
1071486048263890
1120861076675697
128026584b11556
1330b714a80c550
141391d2c1c0038
1583e7b20e26b0
hex410424835ed2

71486048263890 has 32 divisors (see below), whose sum is σ = 184763940129216. Its totient is φ = 17596565726400.

The previous prime is 71486048263831. The next prime is 71486048263891. The reversal of 71486048263890 is 9836284068417.

It is a happy number.

It is a super-2 number, since 2×714860482638902 (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71486048263891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91648779436 + ... + 91648780215.

It is an arithmetic number, because the mean of its divisors is an integer number (5773873129038).

Almost surely, 271486048263890 is an apocalyptic number.

71486048263890 is an abundant number, since it is smaller than the sum of its proper divisors (113277891865326).

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

71486048263890 is a wasteful number, since it uses less digits than its factorization.

71486048263890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183297559674.

The product of its (nonzero) digits is 111476736, while the sum is 66.

The spelling of 71486048263890 in words is "seventy-one trillion, four hundred eighty-six billion, forty-eight million, two hundred sixty-three thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 183297559651 366595119302 549892678953 916487798255 1099785357906 1832975596510 2382868275463 2749463394765 4765736550926 5498926789530 7148604826389 11914341377315 14297209652778 23828682754630 35743024131945 71486048263890