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145245345351320 = 23537494991982641
BaseRepresentation
bin100001000001100110010001…
…001101110000011010011000
3201001021022121211220212112002
4201001212101031300122120
5123014144431402220240
61232524442425540132
742410426026106534
oct4101462115603230
9631238554825462
10145245345351320
1142309228a04565
1214359630344648
136307767421256
1427c1cab200bc4
1511bd27108bd15
hex841991370698

145245345351320 has 64 divisors (see below), whose sum is σ = 335641464180000. Its totient is φ = 56526747678720.

The previous prime is 145245345351317. The next prime is 145245345351329. The reversal of 145245345351320 is 23153543542541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145245345351329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72267200 + ... + 74249840.

Almost surely, 2145245345351320 is an apocalyptic number.

145245345351320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145245345351320 is an abundant number, since it is smaller than the sum of its proper divisors (190396118828680).

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

145245345351320 is a wasteful number, since it uses less digits than its factorization.

145245345351320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032188 (or 2032184 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 47.

Adding to 145245345351320 its reverse (23153543542541), we get a palindrome (168398888893861).

The spelling of 145245345351320 in words is "one hundred forty-five trillion, two hundred forty-five billion, three hundred forty-five million, three hundred fifty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 37 40 74 148 185 296 370 740 1480 49499 98998 197996 247495 395992 494990 989980 1831463 1979960 1982641 3662926 3965282 7325852 7930564 9157315 9913205 14651704 15861128 18314630 19826410 36629260 39652820 73258520 73357717 79305640 146715434 293430868 366788585 586861736 733577170 1467154340 2934308680 98138746859 196277493718 392554987436 490693734295 785109974872 981387468590 1962774937180 3631133633783 3925549874360 7262267267566 14524534535132 18155668168915 29049069070264 36311336337830 72622672675660 145245345351320