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1320018070 = 257233312477
BaseRepresentation
bin100111010101101…
…1110000010010110
310101222211212101011
41032223132002112
510200411034240
6334552322434
744465653120
oct11653360226
93358755334
101320018070
11618130128
1230a0a341a
131806266a7
14c7452210
157ad466ea
hex4eade096

1320018070 has 64 divisors (see below), whose sum is σ = 2843237376. Its totient is φ = 431418240.

The previous prime is 1320018067. The next prime is 1320018079. The reversal of 1320018070 is 708100231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320018079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531672 + ... + 534148.

It is an arithmetic number, because the mean of its divisors is an integer number (44425584).

Almost surely, 21320018070 is an apocalyptic number.

1320018070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320018070 is an abundant number, since it is smaller than the sum of its proper divisors (1523219306).

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

1320018070 is a wasteful number, since it uses less digits than its factorization.

1320018070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1320018070 is about 36332.0529285093. The cubic root of 1320018070 is about 1096.9663160422.

The spelling of 1320018070 in words is "one billion, three hundred twenty million, eighteen thousand, seventy".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 331 662 805 1610 1655 2317 2477 3310 4634 4954 7613 11585 12385 15226 17339 23170 24770 34678 38065 53291 56971 76130 86695 106582 113942 173390 266455 284855 398797 532910 569710 797594 819887 1639774 1993985 3987970 4099435 5739209 8198870 11478418 18857401 28696045 37714802 57392090 94287005 132001807 188574010 264003614 660009035 1320018070