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68570470230 = 2357331310717
BaseRepresentation
bin111111110111000111…
…100101011101010110
320112222210102210200120
4333313013211131112
52110413020021410
651300103052410
74645145244243
oct776707453526
9215883383616
1068570470230
1127098274209
1211358141106
13660a229c52
143466c185ca
151bb4d86570
hexff71e5756

68570470230 has 32 divisors (see below), whose sum is σ = 166823505504. Its totient is φ = 18034972416.

The previous prime is 68570470229. The next prime is 68570470253. The reversal of 68570470230 is 3207407586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15653169 + ... + 15657548.

It is an arithmetic number, because the mean of its divisors is an integer number (5213234547).

Almost surely, 268570470230 is an apocalyptic number.

68570470230 is an abundant number, since it is smaller than the sum of its proper divisors (98253035274).

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

68570470230 is a wasteful number, since it uses less digits than its factorization.

68570470230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31310800.

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 68570470230 in words is "sixty-eight billion, five hundred seventy million, four hundred seventy thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 73 146 219 365 438 730 1095 2190 31310717 62621434 93932151 156553585 187864302 313107170 469660755 939321510 2285682341 4571364682 6857047023 11428411705 13714094046 22856823410 34285235115 68570470230