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93491941557 = 3719435449201
BaseRepresentation
bin101011100010010001…
…1011101000010110101
322221022121120201102010
41113010203131002311
53012432414112212
6110541040434433
76516550251120
oct1270443350265
9287277521363
1093491941557
1136716844503
1216152318a19
138a7c3c99a1
14474c99d3b7
152672be603c
hex15c48dd0b5

93491941557 has 32 divisors (see below), whose sum is σ = 153449528320. Its totient is φ = 49435142400.

The previous prime is 93491941549. The next prime is 93491941589. The reversal of 93491941557 is 75514919439.

It is not a de Polignac number, because 93491941557 - 23 = 93491941549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 93491941497 and 93491941506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93491941357) 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, 2707444 + ... + 2741757.

It is an arithmetic number, because the mean of its divisors is an integer number (4795297760).

Almost surely, 293491941557 is an apocalyptic number.

It is an amenable number.

93491941557 is a deficient number, since it is larger than the sum of its proper divisors (59957586763).

93491941557 is a wasteful number, since it uses less digits than its factorization.

93491941557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449273.

The product of its digits is 6123600, while the sum is 57.

The spelling of 93491941557 in words is "ninety-three billion, four hundred ninety-one million, nine hundred forty-one thousand, five hundred fifty-seven".

Divisors: 1 3 7 19 21 43 57 129 133 301 399 817 903 2451 5719 17157 5449201 16347603 38144407 103534819 114433221 234315643 310604457 702946929 724743733 1640209501 2174231199 4451997217 4920628503 13355991651 31163980519 93491941557