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15212007420070 = 255377932828599
BaseRepresentation
bin1101110101011101001001…
…0011000111000010100110
31222212020211221201012111211
43131113102103013002212
53443213142344420240
652204144424222034
73130013503423156
oct335272223070246
958766757635454
1015212007420070
11493541568113a
12185823260a91a
138646420a0936
143a839d586766
151b5a74d22bea
hexdd5d24c70a6

15212007420070 has 16 divisors (see below), whose sum is σ = 27381673951200. Its totient is φ = 6084789502464.

The previous prime is 15212007420053. The next prime is 15212007420109. The reversal of 15212007420070 is 7002470021251.

15212007420070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 3963631 + ... + 6792229.

It is an arithmetic number, because the mean of its divisors is an integer number (1711354621950).

Almost surely, 215212007420070 is an apocalyptic number.

15212007420070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15212007420070 is a deficient number, since it is larger than the sum of its proper divisors (12169666531130).

15212007420070 is a wasteful number, since it uses less digits than its factorization.

15212007420070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366399.

The product of its (nonzero) digits is 7840, while the sum is 31.

The spelling of 15212007420070 in words is "fifteen trillion, two hundred twelve billion, seven million, four hundred twenty thousand, seventy".

Divisors: 1 2 5 10 537793 1075586 2688965 2828599 5377930 5657198 14142995 28285990 1521200742007 3042401484014 7606003710035 15212007420070